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LED - An LED or light emitting diode is simply a tiny light bulb that fits into an electrical circuit. However, unlike ordinary bulbs, LEDs don't have a filament that will burn out and generate very little . Used . heat. They are illuminated by the movement of electrons in a semiconductor material and last as long as a standard transistor.. Used . ...

Intelligent Fixtures - Intelligent Fixtures or Moving Lights were originally implemented in 1972, but the first computer-controlled stage lighting fixtures began to gain widespread acceptance in the concert industry in the . Used . early 1980's. As the digital age progressed, the cost of these fixtures was reduced and they slowly started being used in more 'traditional' theatrical environments. Intelligent fixtures are . Used . currently used in almost all major theatrical productions.

Usually relying on compact arc lamps as a light source, these fixtures generally use stepper motors connected to varying internal devices...

Lux - The lux (symbol: lx) is the SI derived unit of illuminance or illumination. It is equal to one lumen per square metre.

The difference between the lux and the lumen is that the lux takes i. Used . nto account the area over which the luminous flux is spread. 1000 lumens, concentrated into an area of one square metre, lights up that square metre with an illuminance of 1000 lux. The same . Used . 1000 lumens, spread out over ten square metres, produces a dimmer illuminance of only 100 lux.

Achieving an illuminance of 500 lux might be possible in a home kitchen with a single fluorescent lig...

Wing - A breakout box or extension console that expands the current consoles capabilities by adding additional tactile faders and controls. Generally applied to lighting control consoles and adapted from a . Used . theater term used to describe the sides of the stage not visible to the audience where the actors make their entrances. . Used . ...

Gobo - A gobo is a thin circular plate with holes cut in it to create patterns of projected light. The name may be derived from a contraction of "go between", or from "GOes Before Optics". Another possible . Used . origin is from the early days of Hollywood. When the Director of Photography wanted daylight excluded from some area of the set, he'd say "GO BlackOut". Members of the crew would run around p. Used . utting black material between the sun and the set.

A gobo may be made from thin metal sheet, usually steel, or from etched glass, depending upon the complexity of the design. Glass gobos often inc