Wavelength - The distance from one point, usually the crest, on a vibrating wave to the same point on the next wave. The shorter the wavelength the higher the frequency and the more directional the wave and vice . Used . versa. Commonly designated by the Greek letter lambda (?), wavelengths are usually measured in Angstroms.. Used . ...
Pre-Rig - Pre-rig Trusses have bars with lights and other gear attached so that they can be lowered into a suitable operating position for a show or raised to store or transport without having to remove the gea. Used . r from the truss.. 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...
Moving Heads - A moving head is an intelligent light mounted on a moving yoke and generally remotely controlled by a lighting control console or preprogrammed to perform a large variety of effects and operations. A . Used . single moving head luminary can replace the functions of many conventional lights and can often perform tasks conventional lights can not. Most modern moving head luminaries utilize DMX-512 s. Used . ignals for control, but some can be controlled by way of analog signals as well.
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Backline - Backline is equipment that is located behind a live band while they are performing. Such examples of backline include amps for guitars and basses. It is the equipment that the band needs aside from . Used . the actual instruments that they are holding and using and the PA and FOH desks.
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