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technology for manipulating beams of elementary charged particles. Most optical phenomena can be accounted for by using the classical electromagnetic description...

An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other. Such fibers are widely used...

A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word...

A passive optical network (PON) is a fiber-optic telecommunications network that uses only unpowered devices to carry signals, as opposed to electronic...

The optical properties of a material define how it interacts with light. The optical properties of matter are studied in optical physics (a subfield of...

is observed in many non-linear optical systems. One of the most common examples is an optical ring resonator. Optical chaos was a field of research in...

Optical networking is a means of communication that uses signals encoded in light to transmit information in various types of telecommunications networks...

written to an optical disc, disk sector by disc sector, including the optical disc file system. ISO images contain the binary image of an optical media file...

An optical microcavity or microresonator is a structure formed by reflecting faces on the two sides of a spacer layer or optical medium, or by wrapping...

The optical window is the portion of the optical spectrum that is not blocked by the Earth's atmosphere. The window runs from around 300 nanometers (ultraviolet-B)...

An optical disc is a flat, usually disc-shaped object that stores information in the form of physical variations on its surface that can be read with...

An optical spectrometer (spectrophotometer, spectrograph or spectroscope) is an instrument used to measure properties of light over a specific portion...

Optical rotation, also known as polarization rotation or circular birefringence, is the rotation of the orientation of the plane of polarization about...

Optical units are dimensionless units of length used in optical microscopy. They are used to express distances in terms of the numerical aperture of the...

An optical module is a typically hot-pluggable optical transceiver used in high-bandwidth data communications applications. Optical modules typically have...

Optical spaces are mathematical spaces, often endowed with coordinate systems, that facilitate the modelling of optical systems as mathematical transformations...

Optical phenomena are any observable events that result from the interaction of light and matter. All optical phenomena coincide with quantum phenomena...

Zenni Optical (formerly 19dollareyeglasses.com) is an American online retailer of prescription glasses and sunglasses. Founded in 2003 by Tibor Laczay...

suitable for manufacturing optical lenses, prisms, and optoelectronics materials. Extruded glass fibres have applications as optical fibres in communications...

cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable but containing one or more optical fibers that are used to...

An optical dilatometer is a non-contact device able to measure thermal expansions or sintering kinetics of any kind of materials, unlike traditional push...

An optical mount is a device used to join a normal camera and another optical instrument, such as a microscope or telescope. The optical mount is generally...

Optical tweezers (originally called single-beam gradient force trap) are scientific instruments that use a highly focused laser beam to hold and move...

of optical communication for transmitting information from one place to another by sending pulses of infrared or visible light through an optical fiber...

An optical mouse is a computer mouse which uses a light source, typically a light-emitting diode (LED), and a light detector, such as an array of photodiodes...

Optical computing or photonic computing uses light waves produced by lasers or incoherent sources for data processing, data storage or data communication...

An optical transistor, also known as photonic transistor, optical switch or light valve, is a device that switches or amplifies optical signals. Light...

Optical microspheres (photonic atoms) are one of the types of optical microresonators (also microcavities) employed commonly in photonic research; they...

An optical cavity, resonating cavity or optical resonator is an arrangement of mirrors or other optical elements that confines light waves similarly to...

comparison of optical clocks across six countries was reported — marking a major step towards establishing a global optical-time standard. Optical atomic clocks...

Optical character recognition (OCR) or optical character reader is the electronic or mechanical conversion of images of typed, handwritten or printed text...

In visual perception, an optical illusion (also called a visual illusion) is an illusion caused by the visual system and characterized by a visual percept...

An optical filter is a device that selectively transmits light of different wavelengths, usually implemented as a glass plane or plastic device in the...

An optical jukebox is a robotic data storage device that can automatically load and unload optical discs from drives, such as CD, DVD, Blu-ray, or UDO...

An optical rectenna is a rectenna (rectifying antenna) that works with visible or infrared light. A rectenna is a circuit containing an antenna and a...

Optical flow or optic flow is the pattern of apparent motion of objects, surfaces, and edges in a visual scene caused by the relative motion between an...

Optical transfection is a biomedical technique that entails introducing nucleic acids (i.e. genetic material such as DNA) into cells using light. All...

In physics, optical depth or optical thickness is the natural logarithm of the ratio of incident to transmitted radiant power through a material. Thus...

Optical feedback (OF) refers to the phenomenon in a laser, where a part of the coherent emission light returns to the laser cavity. The effect is typical...

In optics, optical bistability is an attribute of certain optical devices where two resonant transmissions states are possible and stable, dependent on...

Optical chip may refer to: An integrated circuit that acts as the electrical-optical interface for fiber-optic communication A vision chip which combines...

Optical bonding refers to a protective glass that is glued in front of a display to enhance its readability where installed in high humidity outdoor environments...

Nintendo optical discs are physical media used to distribute video games on three of Nintendo's consoles that released between 2001 and 2012. Manufactured...

Optical brighteners, optical brightening agents (OBAs), fluorescent brightening agents (FBAs), or fluorescent whitening agents (FWAs), are chemical compounds...

A halo (from Ancient Greek ἅλως (hálōs) 'threshing floor, disk') is an optical phenomenon produced by light (typically from the Sun or Moon) interacting...

An optical vortex (also known as a photonic quantum vortex, screw dislocation or phase singularity) is a zero of an optical field; a point of zero intensity...

An optical printer is a device consisting of one or more film projectors mechanically linked to a movie camera. It allows filmmakers to re-photograph...

An optical telegraph is a line of stations, typically towers, for the purpose of conveying textual information by means of visual signals (a form of optical...

related to Optical illusion. Optical Illusion Examples by Great Optical Illusions Optical Illusions & Visual Phenomena by Michael Bach Optical Illusions...

An optical fiber connector is a device used to link optical fibers, facilitating the efficient transmission of light signals. An optical fiber connector...

Medical optical imaging is the use of light as an investigational imaging technique for medical applications, pioneered by American Physical Chemist Britton...

Optical format is a hypothetical measurement approximately 50% larger than the true diagonal size of a solid-state photo sensor. The use of the optical...

In optics, optical path length (OPL, denoted Λ in equations), also known as optical length or optical distance, is the vacuum length that light travels...

An optical coating is one or more thin layers of material deposited on an optical component such as a lens, prism or mirror, which alters the way in which...

Optical materials are transparent materials from which optical lenses, prisms, windows, waveguides, and second-surface mirrors can be made. They are required...

An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier...

Optical sectioning is the process by which a suitably designed microscope can produce clear images of focal planes deep within a thick sample. This is...

5D optical data storage is an experimental nanostructured glass for permanently recording digital data using a femtosecond laser writing process. It is...

In computing, an optical disc drive (ODD) is a disc drive that uses laser light or electromagnetic waves within or near the visible light spectrum as...

of optical elements remains stable over time. Many optical systems require that vibration of optical elements be kept small. As a result, optical tables...

Optical disc packaging is the packaging that accompanies CDs, DVDs, and other formats of optical discs. Most packaging is rigid or semi-rigid and designed...

The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate...

Optical radiation is the part of the electromagnetic spectrum with wavelengths between 100 nm and 1 mm. This range includes visible light, infrared light...

The compact disc (CD) is a digital optical disc data storage format co-developed by Philips and Sony to store and play digital audio recordings. It employs...

In optics, optical power (also referred to as dioptric power, refractive power, focal power, focusing power, or convergence power) is the degree to which...

Optical burst switching (OBS) is an optical networking technique that allows dynamic sub-wavelength switching of data. OBS is viewed as a compromise between...

Optical sound is a means of storing sound recordings on transparent film. Originally developed for military purposes, the technology first saw widespread...

or a phonon. Optical decay is dominant mechanism of quenching of excitation of active optical media. In solid-state lasers the optical decay limits the...

An optical ground wire (also known as an OPGW or, in the IEEE standard, an optical fiber composite overhead ground wire) is a type of cable that is used...

In physics, the optical theorem is a general law of wave scattering theory, which relates the zero-angle scattering amplitude to the total cross section...

Optical engineering is the field of engineering encompassing the physical phenomena and technologies associated with the generation, transmission, manipulation...

An optical axis is an imaginary line that passes through the geometrical center of an optical system such as a camera lens, microscope or telescopic sight...

circuits, optical interconnects refers to any system of transmitting signals from one part of an integrated circuit to another using light. Optical interconnects...

this range of wavelengths is called visible light (or simply light). The optical spectrum is sometimes considered to be the same as the visible spectrum...

Hakim Optical Lab Ltd. is a Canadian optical chain, the largest privately owned optical chain in Canada. In 2016, it had about 160 stores. Karim Hakimi...

The European Optical Society (EOS) is a European organisation for the development of the science of optics, founded in 1991. Membership is open to national...

An optical time-domain reflectometer (OTDR) is an optoelectronic instrument used to characterize an optical fiber. It is the optical equivalent of an...

Optical pumping is a process in which light is used to raise (or "pump") electrons from a lower energy level in an atom or molecule to a higher one. It...

Optical clocks are a subset of atomic clocks and are based on transitions that emit electromagnetic radiation in the range of 200 nm to 1000 nm. Optical...

Optical 88 (Chinese: 眼鏡88) is a chain of eyewear stores in Hong Kong. In 1984, the predecessor of Optical 88, a group of optometrists, established EyeCare...

Optical film may refer to: Thin film optics, a branch of optics that deals with very thin structured layers of different materials Film, moving picture...

Optical storage is a class of data storage systems that use light to read or write data to an underlying optical media. Although a number of optical formats...

Multivariate optical computing, also known as molecular factor computing, is an approach to the development of compressed sensing spectroscopic instruments...

Optical path (OP) is the trajectory that a light ray follows as it propagates through an optical medium. The geometrical optical-path length or simply...

ratio of the speed of light in vacuum (c) to the speed of light in a given optical medium (v), n=c/v. The refractive index determines how much the path of...

An optical turnstile (also called a speed gate) is a type of turnstile designed to restrict or control access to a building or secure area. Optical turnstiles...

Optical gain is the most important requirement for the realization of a semiconductor laser because it describes the optical amplification in the semiconductor...

The optical transfer function (OTF) of an optical system such as a camera, microscope, human eye, or projector is a scale-dependent description of their...

Optical communication, also known as optical telecommunication, is communication at a distance using light to carry information. It can be performed visually...

Target Optical is an optical company in United States. It operates optical stores inside Target stores in United States. Target Optical was founded by...

Optical conductivity is the property of a material which gives the relationship between the induced current density in the material and the magnitude...

Optical Delusion is the tenth studio album by English electronic music duo Orbital, released on 17 February 2023. According to the review aggregator Metacritic...

DVD (digital video disc or digital versatile disc) is a digital optical disc data storage format. It was invented and developed in 1995 and first released...

An optical communications repeater is used in a fiber-optic communications system to regenerate an optical signal. Such repeaters are used to extend the...

An optical instrument is a device that processes light waves (or photons), either to enhance an image for viewing or to analyze and determine their characteristic...

aberration is a property of optical systems, such as lenses and mirrors, that causes the image created by the optical system to not be a faithful reproduction...

Matt Quinn, known by his stage name Optical, is a British musician, producer and DJ. He is co-founder and owner of Virus Recordings, a widely regarded...

Optical Express is a provider of ophthalmology services including laser eye surgery, cataract surgery and lens replacement surgery in Europe. Optical...

Electro-optic rectification (EOR), also referred to as optical rectification, is a non-linear optical process that consists of the generation of a quasi-DC...

An optical train, also called an optical assembly, is an arrangement of optical components (e.g. lenses, mirrors, prisms) to guide a line of sight and/or...

The American Optical Company, also known as AO Eyewear, is an American luxury eyewear and sunglass company based in Vernon Hills, Illinois, near Chicago...

Optical glass refers to a quality of glass suitable for the manufacture of optical systems such as optical lenses, prisms or mirrors. Unlike window glass...

Optical performance monitoring (OPM) is used for managing high capacity dense wavelength-division multiplexing (DWDM) optical transmission and switching...

An optical parametric amplifier, abbreviated OPA, is a laser light source that emits light of variable wavelengths by an optical parametric amplification...

The Museum of Optical Technologies functions as part of the St. Petersburg State University of Information Technologies, Mechanics and Optics (SPbSU ITMO)...

A glory is an optical phenomenon, resembling an iconic saint's halo around the shadow of the observer's head, caused by sunlight or (more rarely) moonlight...

Recon Optical (Recon/Optical, Inc. or ROI) was a privately held defense contractor providing electro-optical and stabilization products. Founded in 1922...

An optical isolator, or optical diode, is an optical component which allows the transmission of light in only one direction. It is typically used to prevent...

An optical interleaver is a 3-port passive fiber-optic device that is used to combine (Mux) two sets of dense wavelength-division multiplexing (DWDM)...

Sunny Optical Technology (Group) Company Limited, known as Sunny Optical or just Sunny is a Chinese civilian-run enterprise and listed company that produces...

An optical baffle is an opto-mechanical construction designed to block light from a source shining into the front of an optical system and reaching the...

Optical DownConverter (ODC) is an example of a non-linear optical process, in which two beams of light of different frequencies ω 1 {\displaystyle \omega...

Optical sorting (sometimes called digital sorting) is the automated process of sorting solid products using cameras and/or lasers. Depending on the types...

In optics, an optical medium is material through which light and other electromagnetic waves propagate. It is a form of transmission medium. The permittivity...

Optical axis gratings (OAGs) are gratings of optical axis of a birefringent material. In OAGs, the birefringence of the material is constant, while the...

Okaya Optical Co., Ltd. (岡谷光学機械株式会社; Okaya Kōgaku Kikai Kabushiki Gaisha) was the manufacturer in the 1950s of "Lord" cameras, "Vista" binoculars, and...

of Photographic Instrumentation Engineers, later the Society of Photo-Optical Instrumentation Engineers) is an international not-for-profit professional...

Optical disc authoring requires a number of different optical disc recorder technologies working in tandem, from the optical disc media to the firmware...

A magneto-optical drive is a kind of optical disc drive capable of writing and rewriting data upon a magneto-optical disc. 130 mm (5.25 in) and 90 mm (3...

Optical braille recognition is technology to capture and process images of braille characters into natural language characters. It is used to convert...

An optical ring resonator, or micro-ring resonator (MRR) is a set of waveguides in which at least one is a closed loop coupled to light input and output...

Optical coherence elastography (OCE) is an emerging imaging technique used in biomedical imaging to form pictures of biological tissue in micron and submicron...

Optical Disc Archive (ODA) is an archival storage technology developed by Sony. A single cartridge is designed to hold as many as 12 optical discs, each...

This creates an optical virtual private network for each client signal. ITU-T defines an optical transport network as a set of optical network elements...

Transitions Optical is a U.S.-based company known for manufacturing photochromic lenses, which darken on exposure to specific types of light. The company...

An optical modulator is a device which is used to modulate a beam of light. The beam may be carried over free space, or propagated through an optical waveguide...

into its headquarters. Namco's 1995 arcade game Soul Edge used passive optical system markers for motion capture. Motion capture also uses athletes in...

Fiber-optical thermometers can be used in electromagnetically strongly influenced environment, in microwave fields, power plants or explosion-proof areas...

consist of three pairs of points located on the optical axis of a rotationally symmetric, focal, optical system. These are the focal points, the principal...

A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent...

An optical chopper is a device which periodically interrupts a light beam. Three types are available: variable frequency rotating disc choppers, fixed...

Optical tape is a medium for optical storage generally consisting of a long and narrow strip of plastic onto which patterns can be written and from which...

The Optical Confederation is a British trade association launched in April 2010. It is said to help the optometric profession to "punch well above its...

have the same physical properties, except that they often have opposite optical activities. A homogeneous mixture of the two enantiomers in equal parts...

Raman optical activity (ROA) is a vibrational spectroscopic technique that is reliant on the difference in intensity of Raman scattered right and left...

In telecommunications, an optical buffer is a device that is capable of temporarily storing light. Just as in the case of a regular buffer, it is a storage...

Optical mapping is a technique for constructing ordered, genome-wide, high-resolution restriction maps from single, stained molecules of DNA, called "optical...

Coherent optical module refers to a typically hot-pluggable coherent optical transceiver that uses coherent modulation (BPSK/QPSK/QAM) rather than amplitude...

Telescopes with aperture diameter >8 metres This list of the largest optical reflecting telescopes with objective diameters of 3.0 metres (120 in) or...

is a distributed amplitude of color(s). In optics, the term image (or optical image) refers specifically to the reproduction of an object formed by light...

An optical waveguide is a physical structure that guides electromagnetic waves in the optical spectrum. Common types of optical waveguides include optical...

Sterling Optical is an American franchised retail optical chain headquartered in New York, New York. Its parent company is Emerging Vision, whose CEO is...

Plastic optical fiber (POF) or polymer optical fiber is an optical fiber that is made out of polymer. Similar to glass optical fiber, POF transmits light...

Nonlinear optics (NLO) is a branch of optics that studies the case when optical properties of matter depend on the intensity of the input light. Nonlinear...

Optical tomography is a form of computed tomography that creates a digital volumetric model of an object by reconstructing images made from light transmitted...

An optical flat is an optical-grade piece of glass lapped and polished to be extremely flat on one or both sides, usually within a few tens of nanometres...

The physical limitations of metallic media prompted the development of optical fibre. The Internet, a technology independent of any given medium, has...

An optical parametric oscillator (OPO) is a parametric oscillator that oscillates at optical frequencies. It converts an input laser wave (called "pump")...

An optical telescope gathers and focuses light mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct visual...

plastic wrap. DARPA plans to use membrane optics as part of its Membrane Optical Imager for Real-Time Exploitation (MOIRE) program. The program uses lightweight...

weapons, surveying instruments, aircraft equipment, optical illumination equipment or larger optical instruments with the intended target. Sights can be...

Optical mineralogy is the study of minerals and rocks by measuring their optical properties. Most commonly, rock and mineral samples are prepared as thin...

Optical molasses (OM) is a laser cooling configuration that can produce extremely cold ensembles of neutral atoms. The temperatures can reach as low as...

Raytheon ELCAN Optical Technologies, also simply ELCAN (Ernst Leitz CANada), is a Canadian optics and electronics manufacturing company owned by American...

Blu-ray (Blu-ray Disc or BD) is a digital optical disc data storage format designed to supersede the DVD format. It was invented and developed in the...

A parallel optical interface is a form of fiber-optic technology aimed primarily at communications and networking over relatively short distances (less...

An optical reader is a device that observes visual information and translates it into digital information, as found within most image and barcode and...

An off-axis optical system is an optical system in which the optical axis of the aperture is not coincident with the mechanical center of the aperture...

optical line termination (OLT), also called an optical line terminal, is a device which serves as the service provider endpoint of a passive optical network...

An optical link is a telecommunications link that consists of a single end-to-end optical circuit. A cable of optical fibers, possibly concatenated into...

An optical correlator is an optical computer for comparing two signals by utilising the Fourier transforming properties of a lens. It is commonly used...

Multi-mode optical fiber is a type of optical fiber mostly used for communication over short distances, such as within a building or on a campus. Multi-mode...

The optical metric was defined by German theoretical physicist Walter Gordon in 1923 to study the geometrical optics in curved space-time filled with...

An optical trackpad is an input device based on an optical sensor, which detects the displacement of a finger that is moving on top of it. The sensor...

An optical pulsar is a pulsar which can be detected in the visible spectrum. There are very few of these known: the Crab Pulsar was detected by stroboscopic...

Transdermal optical imaging, also known as transdermal optical imagery or TOI, is a method of detecting blood flow of the face by measuring hemoglobin...

GPS functionality [citation needed] All cameras used CCD sensors and had optical image stabilization. The series included bridge cameras and compact cameras...

("burned") onto an optical disc (typically a compact disc or DVD). To burn an optical disc, one usually first creates an optical disc image with a full...

An optical circulator is a three- or four-port optical device designed such that light entering any port exits from the next. This means that if light...

Optical scanning can refer to: an optical reader a 3D scanner This disambiguation page lists articles associated with the title Optical scanning. If an...

optics, an optical phase space is a phase space in which all quantum states of an optical system are described. Each point in the optical phase space...

Optical manufacturing and testing is the process of manufacturing and testing optical components. It spans a wide range of manufacturing procedures and...

An optical cross-connect (OXC) is a device used by telecommunications carriers to switch high-speed optical signals in a fiber optic network, such as an...

The history of optical recording can be divided into a few number of distinct major contributions. The pioneers of optical recording worked mostly independently...

Atomic, molecular, and optical physics (AMO) is the study of matter–matter and light–matter interactions, at the scale of one or a few atoms and energy...

group). The Urals Optical-Mechanical Plant Production Association is one of Russia's leading optical enterprises, producing optical systems for military...

These early cables used copper wires in their cores, but modern cables use optical fiber technology to carry digital data, which includes telephone, internet...

Cohen's Fashion Optical (formerly known as Cohen's Optical) is an optical retailer headquartered in New York City featuring fashion products such as eyeglasses...

In optical astronomy, interferometry is used to combine signals from two or more telescopes to obtain measurements with higher resolution than could be...

artifacts appearing in photographic images and video recordings. Most optical analyses to date have concluded that the images are insects moving across...

molecular, and optical (AMO) physics, an optical lattice clock is a type of atomic clock that uses neutral atoms confined in an optical lattice, which...

earliest true telegraph put into widespread use was the Chappe telegraph, an optical telegraph invented by Claude Chappe in the late 18th century. The system...

List of largest optical reflecting telescopes – List of large optical telescopes List of largest optical refracting telescopes List of space telescopes...

Optical Materials is a peer-reviewed scientific journal that publishes original papers and review articles on the design, synthesis, characterisation...

The optical square uses a pentaprism to reflect and refract a beam or sighting 90 degrees, it is used in pairs in surveying and in a singular block in...

RC Optical Systems was a high-end American telescope and optics manufacturer that specialized in Ritchey-Chrétien telescopes with hyperbolic mirrors....

An optical scan voting system is an electronic voting system that uses an optical scanner to read marked paper ballots and tally the results. While mark...

(/ɪˈnænti.əmər, ɛ-, -oʊ-/ ih-NAN-tee-ə-mər), also known as an optical isomer, antipode, or optical antipode, is one of a pair of molecular entities which are...

fiber-optic communication, a single-mode optical fiber, also known as fundamental- or mono-mode, is an optical fiber designed to carry only a single mode...

An optical power meter (OPM) is a device used to measure the power in an optical signal. The term usually refers to a device used for measuring the average...

The General Optical Council (GOC) is an organisation in the United Kingdom which maintains a register of opticians and regulates the services provided...

included with most operating systems). Optical networking is a sophisticated infrastructure that utilises optical fibre to transmit data over long distances...

An optical mesh network is a type of optical telecommunications network employing wired fiber-optic communication or wireless free-space optical communication...

day, with the strange lights having been determined to be an atmospheric optical phenomenon. The phenomenon occurs several kilometers out from the shore...

An optical neural network is a physical implementation of an artificial neural network with optical components. Early optical neural networks used a photorefractive...

state-owned Rostec corporation. The Lytkarino Optical Glass Plant is a major producer of optical glass and precision optical instruments for the military as well...

Optical wireless communications (OWC) is a form of optical communication in which unguided light is used "in the air" (or in outer space), without an optical...

The C79 optical sight (SpecterOS3.4×) is a telescopic sight manufactured by Elcan. A variant, the M145 Machine Gun Optic is in use by the US military...

3D optical data storage is any form of optical data storage in which information can be recorded or read with three-dimensional resolution (as opposed...

owns, predominantly LensCrafters, Sunglass Hut, Pearle Vision, Target Optical, and Glasses.com. It also owns EyeMed, one of the largest vision health...

integrated waveguide optical power distribution device, similar to a coaxial cable transmission system. The optical network system uses an optical signal coupled...

it began to manufacture microscopes. Later that year, the Bausch & Lomb Optical Company won a distinction at the Philadelphia Centennial Exposition. The...

An optical cage system is an optomechanical system that is used to mount optical elements such as lenses and mirrors together in a rigid assembly. Optical...

An optical landing system (OLS) (nicknamed "meatball" or simply "ball") is used to give glidepath information to pilots in the terminal phase of landing...

Local Optical Committees are statutory bodies established within the British National Health Service to represent the interests of community optometrists...

IBM designed, manufactured and sold optical mark and character readers from 1960 until 1984. The IBM 1287 is notable as being the first commercially sold...

although typefaces with optical sizes remain rare. The recent variable font technology further allows designers to include an optical size axis for a typeface...

energy flow. Rays are used to model the propagation of light through an optical system, by dividing the real light field up into discrete rays that can...

An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled—elements...

Electro-optical sensors are electronic detectors that convert light, or a change in light, into an electronic signal. These sensors are able to detect...

A holographic optical element (HOE) is an optical component (mirror, lens, directional diffuser, etc.) that produces holographic images using principles...

supports information exchange includes wired media like copper cables, optical fibers, and wireless radio-frequency media. The arrangement of hosts and...

Optical mark recognition (OMR) collects data from people by identifying markings on a paper. OMR enables the hourly processing of hundreds or even thousands...

Geometrical–optical are visual illusions, also optical illusions, in which the geometrical properties of what is seen differ from those of the corresponding...

Erker's Optical Co. of St. Louis, Missouri is an optical company started in 1879 by A.P. Erker. A.P. Erker's brother, Olympic gold medalist August Erker...

This is a list of the largest optical telescopes in North America. A list of optical telescopes located in North America by aperture. Some of the big traditional...

Link) is a standardized optical fiber connector system. Generically known as optical audio, the most common use of the TOSLINK optical fiber connector is in...

practical semiconductor light emitters invented in the early 1960s and optical fibers developed in the 1970s. The field is also supported by professional...

optical attenuator, or fiber optic attenuator, is a device used to reduce the power level of an optical signal, either in free space or in an optical...

Optical music recognition (OMR) is a field of research that investigates how to computationally read musical notation in documents. The goal of OMR is...

LaserDisc (LD) is a home video format and the first commercial optical disc storage medium. It was developed by Philips, Pioneer, and the movie studio...

Near-field scanning optical microscopy (NSOM) or scanning near-field optical microscopy (SNOM) is a microscopy technique for nanostructure investigation...

beamsplitter is an optical device that splits a beam of light into a transmitted and a reflected beam. It is a crucial part of many optical experimental and...

Optica, founded as the Optical Society of America (later the Optical Society), is a professional society of individuals and companies with an interest...

Etendue or étendue (/ˌeɪtɒnˈduː/) is a property of light in an optical system, which characterizes how "spread out" the light is in area and angle. It...

An optical bar camera is a type of long-focal-length panoramic camera used for panoramic images; e.g., for high-altitude or satellite reconnaissance....

In optics, any optical instrument or system – a microscope, telescope, or camera – has a principal limit to its resolution due to the physics of diffraction...

A photonic integrated circuit (PIC) or integrated optical circuit is a microchip containing two or more photonic components that form a functioning circuit...

Optical toys form a group of devices with some entertainment value combined with a scientific, optical nature. Many of these were also known as "philosophical...

Optical lift is an optical analogue of aerodynamic lift, in which a cambered refractive object with differently shaped top and bottom surfaces experiences...

Optically transparent materials focus on the response of a material to incoming light waves of a range of wavelengths. Frequency selective optical filters...

The Tower Optical Company is a small, Norwalk, Connecticut-based company which has manufactured a binocular viewers used at major tourist sites in the...

An optical lattice is formed by the interference of counter-propagating laser beams, creating a spatially periodic intensity pattern. The resulting periodic...

size, of something. This enlargement is quantified by a size ratio called optical magnification. When this number is less than one, it refers to a reduction...

In optics, optical rotatory dispersion is the variation of the specific rotation of a medium with respect to the wavelength of light. Usually described...

Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for...

preservation of optical media is essential because it is a resource in libraries, and stores audio, video, and computer data. While optical discs are generally...

An optical tracer is an X-Y tooling machine which utilises a photoeye to track toolpaths printed on a full-scale drawing and move a tool head accordingly...

opposed to a fixed-focal-length (FFL) lens (prime lens). A true zoom lens or optical zoom lens is a type of parfocal lens, one that maintains focus when its...

Optical IP Switching (OIS), is a novel method of creating transparent optical connections between network nodes using a flow-based approach. An IP flow...

conventional optical microscopy contributed significantly to the development of near-field optical devices, most notably the near-field scanning optical microscope...

In optical disc manufacturing, replication is the process of producing discs via methods that do not involve "burning" blank CD, DVD or other discs; the...

technique in the fields of astronomy, fiber optics, engineering, metrology, optical metrology, oceanography, seismology, spectroscopy (and its applications...

The manipulation of atoms using optical fields is a vital and fundamental area of research within the field of atomic physics. This research revolves...

ADVA Optical Networking SE was a German telecommunications company specialized in network equipment for data, storage, voice and video services, was founded...

In optics, an image-forming optical system is a system capable of being used for imaging. The diameter of the aperture of the main objective is a common...

optical splitters in series (cascaded). Unlike traditional point-to-point fiber connections, PON systems distribute optical signals from an optical line...

In atomic, molecular, and optical physics, a magneto-optical trap (MOT) is an apparatus which uses laser cooling and a spatially varying magnetic field...

(WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (i.e., colors)...

digital types, which include digital cameras, camera modules, camera phones, optical mouse devices, medical imaging equipment, night vision equipment such as...

that falls on them and reflect little of it; such materials are called optically transparent. Many liquids and aqueous solutions are highly transparent...

detect motion, in turn connected to internal rollers. Most modern mice use optical movement detection with no moving parts. Though originally all mice were...

use methods such as monitoring electromagnetic radiation, searching for optical signals, and investigating potential extraterrestrial artifacts for any...

the count of spin-ups, though its reliability is disputed. The health of optical media can be determined by measuring correctable minor errors, of which...

demonstrated optical communications to and from Earth using the Orion Artemis II Optical Communications System (O2O), which uses laser beams. Such an optical system...

electronic image stabilization can also compensate for rotation about the optical axis (roll). It is mainly used in high-end image-stabilized binoculars...

equivalent to angular magnification (this should not be confused with optical power, which is a different quantity). The magnifying power is the ratio...

When optical fibers are exposed to ionizing radiation such as energetic electrons, protons, neutrons, X-rays, Ƴ-radiation, etc., they undergo 'damage'...

are essential in a wide range of applications, from digital imaging and optical communication to scientific research and industrial automation. Photodetectors...

An optical DPSK demodulator is a device that provides a method for converting an optical differential phase-shift keying (DPSK) signal to an intensity-keyed...

Optical cluster states are a proposed tool to achieve quantum computational universality in linear optical quantum computing (LOQC). As direct entangling...

that measure chemical and physical properties of materials, including optical sensors for refractive index measurement, vibrational sensors for fluid...

Therefore the optical power of the measurement arm is directly proportional to the electrical power and electrical signals from optical interferometry...

Optical coherence tomography (OCT) is a high-resolution imaging technique with most of its applications in medicine and biology. OCT uses coherent near-infrared...

Optical granulometry is the process of measuring the different grain sizes in a granular material, based on a photograph. Technology has been created...

Optical relief (usually noted as simply relief) is a visually observable property in optical mineralogy used to identify minerals based on their refractive...

microscope, telescope, or binoculars. Optically, defocus refers to a translation of the focus along the optical axis away from the detection surface....

Optical Race is the thirty-fifth major release and eighteenth studio album by Tangerine Dream. Optical Race is the inaugural album of the Melrose Years...

Optical contact bonding is a glueless process whereby two closely conformal surfaces are joined, being held purely by intermolecular forces. Isaac Newton...

The Frank Isakson Prize for Optical Effects in Solids is a prize that has been awarded every second year by the American Physical Society since 1980....

In astronomy, a fast blue optical transient (FBOT), or more specifically, luminous fast blue optical transient (LFBOT), is an explosive transient event...

Optical margin alignment outdents letters like A, V, W, Y, and punctuation into the margins to align the text border optically. Some users remark that...

The Vavilov State Optical Institute in St Petersburg, Russia (named after Sergey Ivanovich Vavilov) is a research institute in optics in Russia. It works...

Optical cross section (OCS) is a value which describes the maximum amount of optical flux reflected back to the source. The standard unit of measurement...

An optical system with astigmatism is one where rays that propagate in two perpendicular planes have different foci. If an optical system with astigmatism...

audio optical disc is an optical disc that stores sound information such as music or speech. It may specifically refer to: Compact disc (CD), an optical disc...

Laser communication in space is the use of free-space optical communication in outer space. Communication may be fully in space (an inter-satellite laser...

Photolithography (also known as optical lithography) is a process that involves using light to transfer a pattern onto a photoresist layer deposited on...

to enhance image quality. Features like low-light and HDR photography, optical image stabilization, and depth-sensing became common in smartphone cameras...

Microstructured optical fibers (MOF) are optical fiber waveguides where guiding is obtained through manipulation of waveguide structure rather than its...

Kazan Optical-Mechanical Plant (Russian: Казанский оптико-механический завод), commonly known by its Russian initials KOMZ, is an optics manufacturer...

Shamir Optical Industry Ltd. is an international company headquartered in Kibbutz Shamir, Israel that develops and manufactures optical lenses for eyeglasses...

Xiamen Yarui Optical Co., Ltd (Chinese: 厦门雅瑞光学有限公司; pinyin: Xiàmén Yǎruì Guāngxué Yǒuxiàn Gōngsī), doing business as Bolon (Chinese: 暴龙; pinyin: Bàolóng)...

In general relativity, optical scalars refer to a set of three scalar functions { θ ^ {\displaystyle \{{\hat {\theta }}} (expansion), σ ^ {\displaystyle...

Diffuse optical imaging (DOI) is a method of imaging using near-infrared spectroscopy (NIRS) or fluorescence-based methods. When used to create 3D volumetric...

Optical Engineering is a monthly peer-reviewed scientific journal covering research, development, and uses of optical science and optical engineering...

group with 38.9% of the capital. This merger gives birth to a giant of the optical industry, generating a turnover of more than €16 billion and a market capitalization...

confined to a waveguide, and also in light waves in an optical fiber and in a laser's optical resonator. Transverse modes occur because of boundary conditions...

An electro-optical targeting system (EOTS), is a system employed to track and locate targets in aerial warfare. It can use charge-coupled device, TV cameras...

object interacts. For example, the term subwavelength-diameter optical fibre means an optical fibre whose diameter is less than the wavelength of light propagating...

Optical rogue waves are rare pulses of light analogous to rogue or freak ocean waves. The term optical rogue waves was coined to describe rare pulses of...

the first optical telephone system in 1977 in Long Beach, California. By the early 1980s, optical networks powered by lasers, LED and optical amplifier...

to: Half of the angular aperture of an optical system Acceptance angle (optical fiber), the angle in an optical fiber below which rays are guided rays...

Yangtze Optical Fibre and Cable Joint Stock Limited Company. (YOFC; Chinese: 长飞光纤; pinyin: Zhǎngfēi Guāngxiān) is a publicly listed Chinese company that...

Quantum-optical spectroscopy is a quantum-optical generalization of laser spectroscopy where matter is excited and probed with a sequence of laser pulses...

Optical network-on-chip (ONoC) is a new type of network on chip (NoC) for multiprocessor system-on-chip. While traditional NoC relies on electrical signals...

waves and signals in electrical circuits, in optical fibers, and in air. Electrical attenuators and optical attenuators are commonly manufactured components...

This is a list of large optical telescopes. For telescopes larger than 3 meters in aperture see List of largest optical reflecting telescopes. This list...

produce photomasks (Eventually this whole process was replaced by the optical pattern generator to produce the master image). At this point the master...

intermediates in the femtosecond timescale. Raman optical activity spectroscopy exploits Raman scattering and optical activity effects to reveal detailed information...

In optics, extraordinary optical transmission (EOT) is the phenomenon of greatly enhanced transmission of light through a subwavelength aperture in an...

Optical projection tomography is a form of tomography involving optical microscopy. The OPT technique is sometimes referred to as optical computed tomography...

Specsavers Optical Group Limited is a Guernsey-based multinational optical retail chain, which operates mainly in the UK, Ireland, Australia, New Zealand...

An optical add-drop multiplexer (OADM) is a device used in wavelength-division multiplexing (WDM) systems for multiplexing and routing different channels...

Optical Illusions (Spanish: Ilusiones ópticas) is a 2009 comedy-drama film directed by Cristián Jiménez (in his directorial debut) and written by Jiménez...

A camera lens, photographic lens or photographic objective is an optical lens or assembly of lenses (compound lens) used in conjunction with a camera...

Independent. Archived from the original on 13 July 2019. Retrieved 10 May 2015. "Optical illusion: Dress color debate goes global". BBC News. BBC. Archived from...

Optical lens design is the process of designing a lens to meet a set of performance requirements and constraints, including cost and manufacturing limitations...

A level is an optical instrument used to establish or verify points in the same horizontal plane in a process known as levelling. It is used in conjunction...

The British Optical Association (BOA) was founded in February 1895 as the first professional body for ophthalmic opticians (optometrists) in the world...

Zeiss (/zaɪs/ ZYSSE; German: [kaʁl ˈtsaɪs]) is a German manufacturer of optical systems and optoelectronics, founded in Jena, Germany, in 1846 by optician...

GKB Optic is an Indian retailer of optical products, and operates a chain of retail stores in India. The company was founded by Brijendra Kumar Gupta...

A multivariate optical element (MOE), is the key part of a multivariate optical computer; an alternative to conventional spectrometry for the chemical...

JORDY or Joint Optical Reflective Display is an optical viewing device developed based on NASA technology. It is used to help the visually impaired see...

spread-spectrum time-domain reflectometry. The equivalent device for optical fiber is an optical time-domain reflectometer. Time-domain transmissometry (TDT)...

Optical and Quantum Electronics is a peer-reviewed scientific journal published monthly by Springer Science+Business Media. It covers original research...

Optical attached cable (OPAC) is a type of fibre-optic cable that is installed by being attached to a host conductor along overhead power lines. The attachment...

Starfire Optical Range (SOR - Pronounced as an initialism) is a United States Air Force research laboratory on the Kirtland Air Force Base in Albuquerque...

The Optical Media Board (OMB), formerly known as the Videogram Regulatory Board (VRB), is a Philippine government agency that is part of the Office of...

Optical proximity correction (OPC) is a photolithography enhancement technique commonly used to compensate for image errors due to diffraction or process...

Linear optical quantum computing or linear optics quantum computation (LOQC), also photonic quantum computing (PQC), is a paradigm of quantum computation...

Ultra Density Optical (UDO) is an optical disc format designed for high-density storage of high-definition video and data. The format was introduced by...

include optical transceivers, optical engines, active optical cables, optical components, optical instrumentation, ROADM & wavelength management, optical amplifiers...

Primary Rate Interface, Asynchronous Transfer Mode (ATM), synchronous optical networking (SONET) or MPLS over OTN. Dedicated internet access (DIA) services...

Catastrophic optical damage (COD), or catastrophic optical mirror damage (COMD), is a failure mode of high-power semiconductor lasers. It occurs when...

Automated optical inspection (AOI) is an automated visual inspection of printed circuit board (PCB) (or LCD, transistor) manufacture where a camera autonomously...

(Icelandic: silfurberg [ˈsɪlvʏrˌpɛrk], lit. 'silver-rock') and also called optical calcite, is a transparent variety of calcite, a crystallized calcium carbonate...

used in autocorrelation measurements, as well as higher-order nonlinear optical processes such as third-harmonic generation, in which case the mathematical...

The Optical Society was a scientific society founded in London in 1899, which published Transactions of the Optical Society. The Optical Society was founded...

An optical frequency multiplier is a nonlinear optical device in which photons interacting with a nonlinear material are effectively "combined" to form...

An optical variable device or optically variable device (OVD) is an iridescent or non-iridescent security feature that exhibits different information,...

interferometers. In addition to the classical wave model for understanding optical interference, quantum matter waves also demonstrate interference. The above...

Corporation (ペンタックス株式会社, Pentakkusu Kabushiki gaisha) was a Japanese camera and optical equipment manufacturer. Currently, it exists as Pentax Medical, a division...

have optical fluorescent properties particularly useful in certain laser applications. Erbium-doped glasses or crystals can be used as optical amplification...

of Optical Communications and Networking is a peer-reviewed scientific journal co-published monthly by Optica and IEEE. It covers advances in optical networking...

The American Optical Company Historic District encompasses a historic industrial complex on the Quinebaug River in Southbridge, Massachusetts. Located...

biologics manufacturing, magnetic tape data storage, optical films for flat-panel displays, optical devices, photocopiers, printers, digital cameras, color...

A condenser is an optical lens that renders a divergent light beam from a point light source into a parallel or converging beam to illuminate an object...

The High Energy Laser with Integrated Optical-dazzler and Surveillance (HELIOS) or Mk 5 Mod 0 HELIOS is a Lockheed Martin-developed 60 kilowatt high-energy...

provide this type of kerning. Optical kerning, on the other hand, is available only in the more advanced systems. With optical kerning, the program uses an...

direction of wave propagation relative to the direction of change in speed. Optical prisms and lenses use refraction to redirect light, as does the human eye...

between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer. The most common...

art, short for optical art, is a style of visual art that uses distorted or manipulated geometrical patterns, often to create optical illusions. It began...

Optical Mechanics, Inc. or OMI is a high-end American telescope and optics instrument manufacturer. OMI was founded in 2002 and produces observatory telescopes...

A theodolite (/θiˈɒdəˌlaɪt/) is a precision optical instrument for measuring angles between designated visible points in the horizontal and vertical planes...

these being the Kerr electro-optic effect, or DC Kerr effect, and the optical Kerr effect, or AC Kerr effect. The Kerr electro-optic effect, or DC Kerr...

Optical Carrier transmission rates are a standardized set of specifications of transmission bandwidth for digital signals that can be carried on Synchronous...

Optical holography is a technique which enables an optical wavefront to be recorded and later re-constructed. Holography is best known as a method of generating...

cable, a buffer is one type of component used to encapsulate one or more optical fibers for the purpose of providing such functions as mechanical isolation...

A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses (dioptrics) and curved mirrors...

condensed matter, specifically in solids and some liquids. In the context of optically trapped objects, the quantized vibration mode can be defined as phonons...

the world's highest located sites for optical, infrared, and gamma-ray telescopes. It is the tenth-highest optical telescope in the world. The Indian Astronomical...

emphasis on optical engineering. The college offers more than 90 courses in optical sciences, and a Bachelor of Science degree in Optical Sciences and...

differential optical absorption spectroscopy (DOAS) is used to measure concentrations of trace gases. When combined with basic optical spectrometers...

Lumentum Holdings Inc. is an American manufacturer of optical and photonic products. It was created in 2015 as a spinoff from JDSU. Lumentum was one of...

Kabushiki-gaisha Tamuron) is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is...

Ultra HD Blu-ray (4K Ultra HD, UHD-BD, or 4K Blu-ray) is a digital optical disc data storage format that is an enhanced variant of Blu-ray. Ultra HD Blu-ray...

Deep Space Optical Communications (DSOC) is a laser space communication system in operation that improved communications performance 10 to 100 times over...

The Advanced Combat Optical Gunsight (ACOG) is a series of prismatic telescopic sights manufactured by Trijicon. The ACOG was originally designed to be...

The Optical Storage Technology Association (OSTA) was an international trade association formed to promote the use of recordable optical data storage technologies...

of media. In practice, it has been most widely used for DVDs and newer optical disc formats, supplanting ISO 9660. Due to its design, it is very well...

The Optical Internetworking Forum (OIF) is a prominent non-profit consortium that was founded in 1998. It promotes the development and deployment of interoperable...

Communications Conference) Optical amplifier Optical communication Optical fiber Optical interconnect Opto-electronic oscillator Parallel optical interface Photoemission...

surrounds a person in religious art Halo (optical phenomenon), glory (optical phenomenon) or corona (optical phenomenon), phenomena where a ring of light...

An optical comparator (often called just a comparator in context) or profile projector is a device that applies the principles of optics to the inspection...

influences the electronic structure of semiconductors and, therefore, their optical band gaps. In a regular semiconductor crystal, the band gap is fixed owing...

Kerner Optical was an American practical visual effects company based in San Rafael, California. Originally the practical effects division of Industrial...

The marine optical buoy (MOBY) measures light at and very near the sea surface in a specific location over a long period of time, serving as part of an...

in Wiktionary, the free dictionary. In optical networking, a lightpath is a path between two nodes in an optical network between which light passes through...

wear. They are common in human interfaces such as digital multimeters. Optical: This uses a light shining onto a photodiode through slits in a disc, commonly...

Optical Cable Corporation, headquartered in Roanoke, Virginia, manufactures fiber optical cable. The company's cable is largely used for telecommunications...

Sterlite Technologies Limited (formerly Sterlite Tech) is an Indian optical and digital technology company, headquartered in Pune. It is listed on Bombay...

A graphene lens is an optical refraction device. Graphene's unique 2-D honeycomb contributes to its unique optical properties. The honeycomb structure...

Unertl Optical Company, Inc. was a manufacturer of telescopic sights in the United States from 1928 until 2008. They are known for their 10× fixed-power...

000 and sufficient optical performance to support prints at up to 2L size, 127×178 mm (5×7 in). Kouichi Ohshita, the lead optical designer, recalled his...

Optical coherence tomography angiography (OCTA) is a non-invasive imaging technique based on optical coherence tomography (OCT) developed to visualize...

Optical PAyload for Lasercomm Science (OPALS) is a spacecraft communication instrument developed at the Jet Propulsion Laboratory that was tested on the...

The slotted optical switch, sometimes known as opto switch or optical switch but not to be confused with the optical component, is a device comprising...

Optical Review is a bimonthly peer-reviewed scientific journal that was established in 1994 and is published by Springer Science+Business Media in partnership...

referred to as the magneto-optic Faraday effect (MOFE), is a physical magneto-optical phenomenon. The Faraday effect causes a polarization rotation which is...

In the history of optical storage media there have been and there are different optical disc formats with different data writing/reading speeds. Original...

The Target Identification System Electro-Optical (TISEO) is the Target identification device used in the F-4 Phantom and F-14 Tomcat that provides sharp...

The Journal of the Optical Society of America is a peer-reviewed scientific journal of optics, published by Optica. It was established in 1917 and in...

discharges. Sprites are associated with various other upper-atmospheric optical phenomena including blue jets and ELVES. A sprite at the horizon, with...

appear close to each other as viewed from Earth, especially with the aid of optical telescopes. This occurs because the pair either forms a binary star (i...

Wavelength switched optical network (WSON) is a type of telecommunications network. A WSON consists of two planes: the data and the control planes. The...

An optical solar reflector (OSR) is a component of a vehicle or machine designed to fly in outer space. The reflector consists of a top layer made out...

Crown glass is a type of optical glass used in lenses and other optical components. It has relatively low refractive index (≈1.52) and low dispersion (with...

the first applications, NIRS was used only as an add-on unit to other optical devices that used other wavelengths such as ultraviolet (UV), visible (Vis)...

Quantum optical coherence tomography (Q-OCT) is an imaging technique that uses nonclassical (quantum) light sources to generate high-resolution images...

Corporation is a Chinese optical corporation. The company produces and supplies optical components and subsystems. The company offers optical fiber connectors/adaptors...

In an optical communications link, the optical power margin is the difference between the optical power that is launched by a given transmitter into the...

Diffuse optical mammography, or simply optical mammography, is an emerging imaging technique that enables the investigation of the breast composition through...

connecting lengths of electrical cables (electrical splice) or optical fibers (optical splice). The splices are often protected by sleeves. The splicing...

class of techniques that improve the resolution of an imaging system. In optical SR the diffraction limit of systems is transcended, while in geometrical...

sectors: display technologies, environmental technologies, life sciences, optical communications, and specialty materials. Corning is involved in two joint...

A compressed audio optical disc, MP3 CD, or MP3 CD-ROM or MP3 DVD is an optical disc (usually a CD-R, CD-RW, DVD-R or DVD-RW) that contains digital audio...

optical multiple stars, which merely look close together when viewed from Earth. Multiple stars may refer to either optical or physical, but optical multiples...

material for optical waveguides, mobile phones, piezoelectric sensors, optical modulators and various other linear and non-linear optical applications...

Optical wireless is the combined use of "optical" (optical fibre) and "wireless" (radio frequency) communication to provide telecommunication to clusters...

The point spread function (PSF) describes the response of a focused optical imaging system to an idealized point source of light. In casual terms, for...

through a communication medium such as radio waves, cables, waveguides, or optical fibers, to the receiver. It is an equation giving the received power from...

Optical Sounds is a Toronto based record label that was launched in 2008 by brothers Robert and Richard Gibson. The label is focused on a community of...

The Museum of Optical Illusions Trapani (Italian: Museo delle Illusioni Ottiche di Trapani) is a museum in the historic centre of Trapani, Sicily, dedicated...

An opto-isolator (also called an optocoupler, photocoupler, or optical isolator) is an electronic component that transfers electrical signals between...

Optical heterodyne detection is a method of extracting information encoded as modulation of the phase, frequency or both of electromagnetic radiation...

developments in the optical sector, changes to legislation affecting optometrists and optical professionals, developments in the optical business and retail...

performs basic research in optical metrology, optical communication, new optical materials, plasmonics and nanophotonics and optical applications in biology...

Hyper–Rayleigh scattering optical activity (/ˈreɪli/ RAY-lee), a form of chiroptical harmonic scattering, is a nonlinear optical physical effect whereby...

commercial applications including anti-reflection coatings, mirrors, and optical filters. In optics, a thin film is a layer of material with thickness in...

that connects to a fiber optic network is known as an optical network terminal (ONT) or optical network unit (ONU). These are commonly used in fiber to...

the boundary. Electromagnetic evanescent waves have been used to exert optical radiation pressure on small particles to trap them for experimentation...

Optical fiber, nonconductive, riser (OFNR) is a type of optical fiber cable. As designated by the National Fire Protection Association (NFPA), this name...

Optical Lithography Chris A. Mack, p. 37. C. A. Mack, Microlith. World, 9–4, 25 (2000) J. S. Petersen et al., Proc. SPIE 3546, 288 (1998). "Optical and...

The core of a conventional optical fiber is the part of the fiber that guides the light. It is a cylinder of glass or plastic that runs along the fiber's...

observatory under construction. When completed, it will be the world's largest optical and mid-infrared extremely large telescope. Part of the European Southern...

The Navy Precision Optical Interferometer (NPOI) is an American astronomical interferometer, with the world's largest baselines, operated by the Naval...

Zagorsk Optical-Mechanical Plant (Russian: Загорский оптико-механический завод) is a company based in Sergiyev Posad (formerly called Zagorsk), Moscow...

A stanhope or stanho-scope is an optical device that enables the viewing of microphotographs without using a microscope. They were invented by René Dagron...

The 6500 Packet-Optical Platform (formerly called the Optical Multiservice Edge 6500 or OME 6500 during the product's time at Nortel) is a multi-port...

millimetres (1 in) thick, but shape and size vary. Smoke can be detected either optically (photoelectric) or by physical process (ionization). Detectors may use...

Endoscopic optical coherence tomography, also intravascular optical coherence tomography is a catheter-based imaging application of optical coherence tomography...

satellites. The vast majority of the world's oceans by area are optically deep. Optically deep water can still be relatively shallow water in terms of total...

the Lagrange invariant is a measure of the light propagating through an optical system. It is defined by H = n u ¯ y − n u y ¯ {\displaystyle H=n{\overline...

to stimulate and measure luminescence. It includes techniques such as optically stimulated luminescence (OSL), infrared stimulated luminescence (IRSL)...

nanoplasmonics refers to the generation, detection, and manipulation of signals at optical frequencies along metal-dielectric interfaces in the nanometer scale. Inspired...

tracing of light through an optical system (such as a lens). A paraxial ray is a ray that makes a small angle (θ) to the optical axis of the system, and lies...

of computer data storage devices (e.g. disk storage, hard disk drives, optical discs, floppy disks, and magnetic tape), and early computer storage methods...

electromagnetic (optical) and the electrical (electronic) states of materials. The electro-optic effect is a change in the optical properties of an optically active...

Optical resolution is the resolved detail of an imaging system by scale. An imaging system may have many individual components, including one or more...

resolution describes the ability of any image-forming device such as an optical or radio telescope, a microscope, a camera, or an eye, to distinguish small...

entrepreneur, and academic. He holds the J. E. Sirrine Endowed Chair of Optical Fiber and is a professor of materials science and engineering, electrical...

A fiber-optic sensor is a sensor that uses optical fiber either as the sensing element ("intrinsic sensors"), or as a means of relaying signals from a...

The Orgov Radio-Optical Telescope, also known as ROT54 or the Herouni Mirror Radio Telescope, is a radio telescope in Orgov, Armenia. It was built between...

by sending a beam of light or electrons through or onto a sample in its optical path, by detecting photon emissions from a sample, or by scanning across...

The Ultraviolet and Optical Telescope (UVOT) is one of three instruments on board the Neil Gehrels Swift Observatory that observes astronomical objects...

original text related to this article: Williamson v. Lee Optical Company Williamson v. Lee Optical Co., 348 U.S. 483 (1955), was a case in which the Supreme...

An acousto-optical spectrometer (AOS) is based on the diffraction of light by ultrasonic waves. A piezoelectric transducer, driven by the RF signal (from...

Stacked Volumetric Optical Disc (or SVOD) is an optical disc format developed by Hitachi Maxell which uses an array of wafer-thin optical discs to allow data...

The Nordic Optical Telescope (NOT) is an astronomical telescope located at Roque de los Muchachos Observatory, La Palma in the Canary Islands. The telescope...

Company that has been in operation since 1884. In 2001, Lucent Technologies' Optical Fiber Solutions business was sold to Furukawa Electric Co. Ltd. The new...

Optical pickup system may refer to: Pickup (music technology) § Optical Optical disc drive § Optical pickup system This disambiguation page lists articles...

signal as output. This is typically done within a camera. The electro-optical transfer function (EOTF) is the transfer function having the picture or...

The Ontario Research and Innovation Optical Network (ORION) is a high-speed optical research and education network in Ontario, Canada. It connects virtually...

1905, and a series of experiments in the 1920s. More recently, in 2009, optical resonator experiments confirmed the absence of any aether wind at the 10−17...

spectroscopy (ICP-AES), also referred to as inductively coupled plasma optical emission spectroscopy (ICP-OES), is an analytical technique used for the...

features optical image stabilization. Panasonic also announced a new Leica-labeled 14–150 mm superzoom lens for the Four Thirds standard, also with optical image...

In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes the range of angles over which the system can...

the optical property of a material having a refractive index that depends on the polarization and propagation direction of light. These optically anisotropic...

that are sensitive in the range of visible light (optical telescopes). Visible-light astronomy or optical astronomy differs from astronomies based on invisible...

Coherent Corp. (formerly II-VI Incorporated) is an American manufacturer of optical materials and semiconductors. As of 2023, the company had 26,622 employees...

The optical force is a phenomenon whereby beams of light can attract and repel each other. The force acts along an axis which is perpendicular to the...

Event-related optical signal (EROS) is a neuroimaging technique that uses infrared light through optical fibers to measure changes in optical properties...

In optics, the optical sine theorem states that the products of the index, height, and sine of the slope angle of a ray in object space and its corresponding...

retro-reflector (MRR) system combines an optical retro-reflector and an optical modulator to allow optical communications and sometimes other functions...

foreground opaque. Next, a three-layer sandwich of film is run through an optical printer. On the bottom is the unexposed copy film. Above it is the first...

50.92781; 11.579275 Optical Museum Jena The Deutsches Optisches Museum Jena is a science and technology museum displaying optical instruments from eight...

An optical beam smoke detector is a device that uses a projected beam of light to detect smoke across large areas, typically as an indicator of fire....

telecommunications, optical modulation amplitude (OMA) is the difference between two optical power levels, of a digital signal generated by an optical source, e...

also known as optical MEMS, are integrations of mechanical, optical, and electrical systems that involve sensing or manipulating optical signals at a very...

The Michelson interferometer is a common configuration for optical interferometry and was invented by the American physicist Albert Abraham Michelson...

Optical beam induced current (OBIC) is a semiconductor analysis technique performed using laser signal injection. The technique uses a scanning laser...

A subwavelength-diameter optical fibre (SDF or SDOF) is an optical fibre whose diameter is less than the wavelength of the light being propagated through...

capabilities beyond simple electrical connection, such as diagnostics. An optical network terminal (ONT) is a type of NID used with fiber-to-the-premises...

(short for High Density Digital Versatile Disc) is an obsolete high-density optical disc format for storing data and playback of high-definition video. Supported...

common opal does not. Play-of-color is defined as "a pseudo chromatic optical effect resulting in flashes of colored light from certain minerals, as...

called the optical Bloch equations describe the dynamics of a two-state quantum system interacting with the electromagnetic mode of an optical resonator...

Optical pooled screening (OPS) is a type of high-content single-cell genetic screen that profiles the phenotypes of individual cells by optical microscopy...

cartridges for their Nintendo 64 system; the company did not transition to optical media until the release of the GameCube in 2001. Cartridges were also used...

One family of standards known as Ethernet passive optical network (EPON) uses a passive optical network. With wide, metro, and local area networks using...

The following is a list of the largest optical telescopes in the 20th century, paying special attention to the diameter of the mirror or lens of the telescope's...

one reciprocal metre, 1 dpt = 1 m−1. It is normally used to express the optical power of a lens or curved mirror, which is a physical quantity equal to...

"4× optical zoom" with an imaging area equivalent to a 1/3.5″ (inches) or larger sensor. Smartphone lenses are often marketed in terms of "optical zoom"...

Sony's Cyber-shot product line, in addition to SteadyShot INSIDE (SSI) and Optical SteadyShot (OSS) in the Sony α family. When a camera is operated hand-held...

specialized in the design, manufacture and sale of ophthalmic lenses, optical equipment and instruments. It is the world's largest manufacturer of ophthalmic...

telecommunications and optical sensors to nanophotonics and optical materials, including the introduction of the first optical fibre drawing tower in...

Frequency-resolved optical gating (FROG) is a general method for measuring the spectral phase of ultrashort laser pulses, which range from subfemtosecond...

Endress+Hauser Optical Analysis, Inc. is a manufacturer of optical-based gas sensors for the industrial process, environmental monitoring and clean technology...

Engineers (IEEE) in 2012 for his contributions to waveguide optical nonreciprocal devices for optical communications. "2012 elevated fellow" (PDF). IEEE Fellows...

behaviour of light rays in optical systems using the paraxial approximation, in which only rays that make small angles with the optical axis of the system are...

Interface by the Optical Internetworking Forum (OIF) for connecting a synchronous optical networking (SONET) framer component to an optical serializer/deserializer...

communications channel.  QAM is being used in optical fiber systems as bit rates increase; QAM16 and QAM64 can be optically emulated with a three-path interferometer...

The White–Haines Building, also known as C. O. Haines Optical Company Building, is a historic building located at 82 North High Street in Downtown Columbus...

angles to signals usable for servo control optical units, a Space Sextant for the CM and an Alignment Optical Telescope for the LM a mechanical frame, called...

_{d}={\frac {\lambda }{\nu }}\Delta f} where λ {\displaystyle \lambda } is the optical wavelength and ν {\displaystyle \nu } is the velocity of the acoustic wave...

photoelasticity (16 September 1822), elliptical and circular polarization and optical rotation (9 December), and partial reflection and total internal reflection...

diffraction from the optical system's aperture; diffraction is the ultimate limit to the light focusing ability of any optical system. Aberrations tend...

A nuclear clock or nuclear optical clock is an atomic clock being developed that will use the energy of a nuclear isomeric transition as its reference...

electronic device that plays audio compact discs, which are a digital optical disc data storage format. CD players were first sold to consumers in 1982...

WiMAX A passive optical distribution network (PON) uses single-mode optical fiber in the outside plant, optical splitters and optical distribution frames...

such as Taito's Space Invaders The same type of mirror, when used in an optical instrument, is called a beam splitter and works on the same principle as...

passive optical network (PON) uses tree-like network topology. Due to the topology of PON, the transmission modes for downstream (that is, from optical line...

theoretical diffraction-limited resolution of about 0.05 arcsec for an optical telescope with a mirror 2.5 m (8 ft 2 in) in diameter. Second, a space-based...

In the case of optical image sampling, as by image sensors in digital cameras, the anti-aliasing filter is also known as an optical low-pass filter (OLPF)...

ceramic composed of aluminium, oxygen and nitrogen. Aluminium oxynitride is optically transparent (≥80% for 2 mm thickness) in the near-ultraviolet, visible...

The Optical Music Series is a set of soundtracks by the English Neoclassical duo In The Nursery, released under their own ITN Corporation record label...

The 3.6m Devasthal (Hindi: देवस्थल) Optical Telescope is a clear-aperture Ritchey–Chrétien telescope built by Aryabhatta Research Institute of Observational...

only direction and approximate view), with simple optical components, with precision optics and optical functions, or a digital accessory device used with...

spectroscopy, allowing for high precision measurements and instruments such as optical clocks. The reduction in thermal energy also allows for efficient loading...

the maximum safe operating temperature. Various measures are taken for optical overheating protection. Stagnation temperatures are encountered under conditions...