A compact optical projection system, mounted on or built into a helmet, and used to project data or a scene directly into the eyes of the wearer. Also called visually coupled display.

A CCD camera, or charge-coupled device camera, is a type of digital camera that utilizes a CCD image sensor to capture and...

The photographic image of a thin specimen having a radioactive isotope that, formed through contact between the specimen and...

Holography is a technique used to capture and reconstruct three-dimensional images using the principles of interference and...

In computer graphics, the point on the display screen where the electron beam is located before the display instruction is...

Selection of specific brightness values or minimum threshold levels as contingencies for the display of digital data.

A light-tight box that receives light from an object or scene and focuses it to form an image on a light-sensitive material...

A laser crystal, also known as an active medium or gain medium, is a solid-state material used in the construction of...

A process used to detect minute gravitational fields and to display images from objects by means of radiated gravitational...

An LCD that has pixels with no internal drive transistors.

Pixel pitch refers to the distance between the centers of two adjacent pixels on a display screen or imaging sensor. It is...

A term used in data processing to describe a cathode-ray tube that displays graphic or character data.

The instrument used to analyze a pulsed electromagnetic wave to determine its time, amplitude, duration and shape, and to...

A defect in infrared systems that appears as a dark circular area on a displayed image, caused by radiation reflecting into...

A luminous display of numbers and the letters of the alphabet.

Method of preserving the measured color value and color information as it is translated from differing devices. For example...

Quantum confinement refers to the phenomenon in quantum mechanics where the motion of charge carriers, such as electrons or...

The technique by which an analog image is converted by any of several means into a finite array of points, each represented...

Enhanced picture archiving and communication system (PACS) display (ePAD) is a software tool used in medical imaging to...

Anisotropy refers to the property of exhibiting different values or characteristics when measured in different directions....

Modification of a system to provide for a linear transfer characteristic from an input to an output device. A circuit for...

1. A device used to trace out an object and build up an image. One of the most common of these types is video scanning. The...

A matrix-controlled display that has no information storage at the display surface.

The acoustical holographic process in which the hologram consists of slight elevations in a liquid surface, in the areas of...

A method used in imaging to detect subtle differences between two apparently similar pictures. It can be achieved by...

A display that is formed in an X-Y manner; i.e., two inputs allow control of X2 elements.

An X-Y electrically addressable series of arrays with individual electron emitters bombarding a phosphor-coated transparent...

A form of liquid crystal in which flow does not take place in the usual manner. When examined with polarized light, the...

An edge-emitting light-emitting diode is a type of LED structure where light emission occurs primarily along the edge of the...

A spectrum that displays the distribution in mass or in mass-to-charge ratio of ionized atoms, molecules or molecular parts....

A mixed-signal oscilloscope (MSO) is a type of electronic test instrument that combines the capabilities of both a...

The face of a cathode-ray tube (CRT) that has a fiber optic sheet attached to its surface. The sheet's fibers are at right...

Computer hardware or firmware that accesses character patterns stored in read-only memory and displays them at specific...

An image converter that produces a visible image based on the infrared emittance of the object. The infrared energy is...

A spectroscopic technique used to display the intensity of an optical pulse as functions of time and frequency...

A pixel, short for "picture element," is the smallest controllable element of a digital image or display. It is a...

A microlens array is a grid-like structure composed of numerous small lenses, typically arranged in a regular pattern. Each...

The analysis of the photographs taken from the radar display of a survey aircraft and used when recording terrain that is...

An acousto-optic modulator (AOM) is a device that utilizes the interaction between sound waves and light waves to modulate...

An electron tube that stores and visually displays information by means of a cathode-ray-beam-scanning and charge-storage...

Photometry is the branch of science that deals with the measurement of light, particularly in terms of its intensity and the...

Light diffusion refers to the process by which light is scattered or spread out in various directions as it interacts with a...

Any of the constants that relate the tendency of the director to remain parallel to restoring torques throughout the media....

Sapphire crystal refers to a transparent, single-crystal form of aluminum oxide (Al2O3) known as corundum. It is one of the...

A visual display used with a computer to give access to the many elements of data as an array of points. With the display...

A type of color-generating cathode-ray tube that uses a shadow mask, a thin perforated electrode, located close to the...

A data transfer function that moves a rectangular group of pixels between bit maps. Often used in displaying cursors and...

When applied to LCD grids, the active matrix is a means of supplying power to pixels by use of a transistor and capacitor....

The dielectric coefficient parallel to the director in a liquid crystal display (LCD), rather than perpendicular to the...

An electrophoretic display, often referred to as an electronic paper display or e-paper display, is a type of electronic...

An optical diffuser is an optical component or material designed to scatter or diffuse light that passes through it. It is...

High dynamic range (HDR) refers to a technology that allows for a broader and more dynamic range of luminosity in visual...

Advanced driver assistance systems (ADAS) refers to a set of safety features and technologies designed to assist drivers in...

An OLED display formed by creating an array of OLED pixels connected by intersecting anode and cathode conductors arranged...

An LED, or light emitting diode, is a semiconductor device that emits light when an electric current passes through it. LEDs...

Spatial resolution refers to the level of detail or granularity in an image or a spatial dataset. It is a measure of the...

I/O stands for input/output. In computing, it refers to the communication between a computer system or program and its...

An organic light-emitting diode (OLED) is a type of light-emitting diode (LED) technology that utilizes organic compounds to...

An image processing device that displays pseudocolor images by assigning colors to the gray scales according to look-up...

The term "embedded laser" typically refers to a laser device that is integrated or embedded into a larger system or...

The frequency domain is a concept used in signal processing and analysis to represent signals and data in terms of their...

A helium-neon (HeNe) laser is a type of gas laser that emits visible red light at a wavelength of 632.8 nm. It operates...

RGB stands for red, green, blue, which are the primary colors of light used in additive color mixing. The RGB color model is...

Polarization refers to the orientation of oscillations in a transverse wave, such as light waves, radio waves, or other...

With respect to pictorial displays, the ratio of the width to the height. The television standard in the US is 4:3....

The luminescence displayed when particular minerals are irradiated with β-rays and g-rays, after being exposed to...

A filter, pale purple in color, used in black and white photography to display the brightness values of a subject being...

Liquid crystals are a state of matter that exhibits properties intermediate between those of conventional liquids and solid...

A polygonal mirror, also known as a multifaceted mirror or facet mirror, is a type of optical component used in various...

A transparent crystalline substance that displays the same optical properties (i.e. refractive index) in all directions such...

A display device that contains an inert gas that gives off orange light when a high voltage is applied to ionize the gas.

A digital camera is a device that captures and records still images or video in digital format. Unlike traditional film...

A holographic camera, also known as a holographic imaging system or holographic recorder, is a specialized device used to...

A liquid crystal display using the material in its supertwisted nematic phase; the birefringence of the liquid crystal...

A type of flat panel display made up of a layer of gas between two glass plates. The glass is coated with parallel...

A handheld, light-sensitive device that is used with a display console to directly change, measure or erase the visual...

Gallium arsenide phosphide (GaAsP) is a semiconductor alloy composed of gallium (Ga), arsenic (As), and phosphorus (P). It...

The science of producing, recording, storing, transmitting and displaying visual images by any system (photographic, video,...

A quantum dot is a nanoscale semiconductor structure, typically composed of materials like cadmium selenide or indium...

A computer-generated hologram (CGH) is a holographic image produced using computational methods and algorithms, rather than...

Augmented reality (AR) is a technology that integrates digital information, typically in the form of computer-generated...

A reflection hologram using multiple color lasers that integrates various graphical techniques to allow the display of...

Liquid crystal on silicon (LCoS) is a display technology that combines liquid crystal materials with silicon-based...

A lock-in amplifier is a specialized electronic instrument used to extract and measure small signals embedded in noise or...

An optical combiner, in the context of optics and display technologies, refers to a device or component that combines...

Optoelectronics is a branch of electronics that focuses on the study and application of devices and systems that use light...

The formation and display of three-dimensional images by ultrasonic energy. In one technique, the energy pulses from an...

A display device, such as a cathode-ray tube, that is located at some distance from the source generating the displayed...

The characteristic of displaying three colors when observed in as many separate directions.

An optical scanning system found in most computer scanners that can read documents, often in many type styles, and convert...

A microdisplay is a miniature electronic display technology that is designed to project visual information onto a small...

On a display monitor, a small, mobile rectangle, cross-hair or pointer that locates a feature in an image that is the object...

In display technology, an expression of resolution given by the number of pixels in both the horizontal and the vertical...

In image processing, any operation that strengthens information about the edges of objects displayed. Three types of spatial...

The pattern of lines traced by rectilinear scanning in display systems.

An accurate cathode-ray tube display used to provide visual representation stored in a computer for the interpretation and...

A display device having a thermoplastic film as the control layer medium. The film, moving from a playoff reel, is scanned...

A type of electroluminescent display that will record and maintain an irradiated image on its phosphor screen, provided a DC...

In a cathode-ray tube, the region wherein a display on the tube keeps 70 percent or more of its luminance at the center of...

A liquid crystal light valve (LCLV), also known as a spatial light modulator (SLM), is an optical device that modulates the...

A matrix-controlled display that has information storage at the display surface, and requires that an element be addressed...

1. A mechanism that permits the focusing of an optical system.2. A means of obtaining the sharpest image from a cathode-ray...

Lens testing equipment refers to a range of specialized tools and instruments used to evaluate the optical performance,...

A type of liquid-crystal display in which each display element contains an active component, such as a thin-film transistor,...

A highly accurate cathode-ray tube used to display information with the utmost efficient stability and resolution. The...

An electronic display in which a flat screen is formed by an orthogonal array of display devices, such as electroluminescent...

The utilization of the light produced when electrical energy is directly converted into light within devices used for visual...

A pattern on an oscilloscope display that consists of a string of shapes that resemble eyes. Because the pattern becomes...

Quantum dot light-emitting diode (QLED) is a display technology that utilizes quantum dots, which are semiconductor...

A display that allows the observation and measurement of the altitude and range of airborne objects.

In image processing, the memory that stores the values for the point processes. Input pixel values are those for the...

1. In relation to cathode-ray tube displays, errors in the signal's amplitude, phase or both that result in small, rapid...

The progressive defocusing of a cathode-ray tube display image that occurs when the deflected electron beam impinges on the...

The use of head-mounted displays and body-operated remote actuators to control distant machinery. Provides a virtual...

A microscope that uses a flying spot scanner, directed through the eyepiece, as a light source to determine the features of...

Structural color refers to coloration in materials that is not caused by pigments or dyes but is instead a result of the...

A cathode-ray tube that generates symbols for use in other displays. The tube operates by scanning specific characters on...

An optical filter is a device that selectively transmits or blocks specific wavelengths, or colors, of light. Optical...

Gallium nitride-based light-emitting diodes (GaN-based LEDs) are semiconductor devices that emit light when an electric...

An analog method of moving a cathode-ray tube beam across a display screen face, commonly used in high-performance vector...

A type of optical modulator with potential application in optical switching and displays, in which applied voltage causes a...

A cathode-ray display where information is represented visually as spots. Each spot's location is represented by a...

An endoscope is a medical device used for visualizing and examining the interior of hollow organs, body cavities, or...

The observable illustration of an image, scene or data on a screen such as a console or cathode-ray tube, seen as a graph,...

Intentionally alternating the intensity of a display element in a graphic display device.

An OLED display that has an integrated electronic backplane as its substrate. Active-matrix OLED displays use at least two...

Micro-optics refers to the design, fabrication, and application of optical components and systems at a microscale level....

The spontaneous visual presentation of radar information by electronic traces on a cathode-ray tube.

Refers to a display or screen that is illuminated from behind; the light is transmitted as opposed to reflected.

A form of liquid crystal in which the 90° twist of the twisted nematic phase has been increased to 180° or more,...

Freeform optics refers to the design and fabrication of optical surfaces that do not follow traditional symmetric shapes,...

A flexible display refers to a type of electronic visual display that is designed to be bendable, foldable, or rollable,...

Micro-LED (micro-light-emitting diode) refers to a technology that involves the use of very small light-emitting diodes to...

A cathode-ray tube, driven by a computer, that receives impulses of information from the computer and displays it in a...

Also known as display primaries. Colors formed by a television receiver that are of constant chromaticity and variable...

A form of liquid crystal widely used in displays, achieved by sandwiching a liquid crystal material between two substrates...

A television display system in which the television signal is converted to an image that is projected onto either a front or...

A type of geometrical distortion that brings about a trapezoidal display of a nominally rectangular picture. Usually...

A scanning device used to cyclically tune through a given frequency range to determine the amplitude-frequency distribution...

A fluorescent screen refers to a phosphorescent or fluorescent-coated surface that emits visible light when exposed to other...

Frame rate refers to the frequency at which consecutive images, or frames, are displayed in a video sequence. It is...

A blue diode laser is a type of semiconductor laser that emits light in the blue wavelength range of the electromagnetic...

With respect to display systems, a device that uses an independent light source and a control-layer medium, the active...

A thermogram in which temperature values are displayed in discrete thermal bands, each band possessing a distinct color.

An LED (light-emitting diode) is a semiconductor device that emits light when an electric current passes through it. LEDs...

An alphanumeric display formed by a layer of liquid crystal material sandwiched between two sheets of glass; a transparent...

1. The process of following an object's movement; accomplished by focusing a radar beam on the reticle of an optical system...

In image processing, methods of reducing image defects that result from false data. Techniques include sampling, linear...

A display standard no longer in use and originally defined for IBM PCs, with 640 3 480 pixels in 16 colors and a 4:3 aspect...

A galvanometric scanner, also known as a galvanometer scanner or galvo scanner, is a type of optical scanning device used to...

A night-vision device that uses one or more infrared transducers to scan a scene in the 3- to 5-µm or 8- to...

In computer graphics, the assignment of each pixel on a display screen to its own switch in the computer memory.

The use of miniature scanners to project raster-scanned video images directly onto the surface of the human retina,...

Type of solid-state display tube in which the readout surface is coated with a material that changes color when positively...

Computer output in the form of pictorial representation (graphs, charts, drawings, etc.) that is displayed visually.

A display in which regeneration takes place serially at a fixed speed in a set pattern through the scan lines.

Virtual reality (VR) is a computer-generated simulation of a three-dimensional environment or experience that can be...

Optical materials refer to substances or compounds specifically chosen for their optical properties and used in the...

The direct computation of the Fourier transform of the space variant system output of an optical processor with a single...

An OLED display that has an integrated electronic backplane as its substrate. Active-matrix OLED displays use at least two...

The vertical or horizontal distance between two addressable points on a display screen; indicates the basic resolution...

Thin-film coatings are layers of material applied to the surface of an object or substrate, typically to modify its optical,...

An optical system that superimposes a synthetic display providing navigational or weapon-aiming information on a pilot's or...

The area in a 2-D or 3-D microdisplay viewer within which the eye can move and still see the entire image.

An electrowetting display (EWD) is a type of electronic display technology that utilizes the principles of electrowetting to...

An infrared camera, also known as a thermal imaging camera or IR camera, is a device that captures and visualizes the...

A cathode-ray tube in which secondary emission electrons form a display of high intensity.

Interferometric modulator display (IMOD) is a type of display technology used in electronic devices, known for its energy...

A display format consisting of small light-emitting elements arranged as a two-dimensional array. Various elements are...

In optics, the term image jump refers to a displacement or shift in the apparent position of an image when a change occurs...