The mathematical set of equations showing the relationship between oscillating electric and magnetic fields that are generated by an oscillating electric charge. Intrinsic to Maxwell's equations is the velocity constant c, which shows that...

A tough, durable, heat- and cold-resistant optical quality plastic used in injection-molded items such as streetlight...

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

The gray-colored tones halfway between shadows and highlights in a reproduced image.

The term reflective is an adjective that describes the ability of a surface or material to reflect light or other forms of...

Retroreflection is a phenomenon in optics where light is reflected back toward its source, typically in a direction nearly...

Concave and convex spherical mirrors are types of curved mirrors that have surfaces shaped like segments of spheres. These...

Process in which two or more lights are combined by superposition.

A halogen lamp, also known as a tungsten halogen, quartz-halogen, or quartz iodine lamp, is an incandescent lamp that uses a...

A Fresnel lens is a type of optical lens that consists of a series of concentric grooves or steps carved into a flat, thin...

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

With respect to television, a potentiometer that allows variation of the intensity of the different elements of an image and...

A set of three colored lights which, when mixed, give the sensation of white light. The set used in color television, for...

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

An optical instrument that uses a yellow light of varying intensity with red and blue lights of fixed intensity to test for...

1. The continuous thin strip marked by the scanning beam. Generally, during return of the scan, the line is blanked out. 2....

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

Machine vision lighting refers to the use of specific lighting techniques and equipment in the field of machine vision,...

Chip-on-board (COB) lights refer to a type of LED lighting technology where multiple LED chips are directly mounted onto a...

The improper exposure of a radiation-sensitive medium that results when there is too much radiation exposing the medium, or...

The luminance of a mixture of lights is the sum of the luminances of the component lights in the mixture.

Property of a surface which, because of directional reflection, is responsible for the degree to which reflected highlights...

Histochemical staining is a laboratory technique used in biology and medicine to visualize specific chemical components...

Thermal interface materials (TIMs) are substances or compounds used to enhance the thermal conductivity between two surfaces...

The discernment of depth or apparent difference in distance that causes the object to stand out from its background because...