Achromatic - A lens arrangement designed to decrease chromatic aberration, for example: to set the same focal length for red and blue light at the focal plane. Also, a color having no chroma as in black, white and. Used . grays created by mixing black and white instead of other colors that are made of chromatic pigments.. Used . ...
PAR - PAR is an acronym referring to "Parabolic Aluminized Reflector" which describes the mirror configuration. PAR lights resemble car headlights. They possess a lens, but the lens is an integral part of t. Used . he lamp and its position relative to the filament canno . Used . ...
Multi Effects - Multi effects applies to any outboard audio effects hardware that is capable of processing the signal through more than one effect. In modern effects hardware multi effects are more common and usuall. Used . y include many different effects by which the audio can be processed.. Used . ...
Light Board - A light board is yet another name used to describe a lighting console.. Used . . Used . ...
Ohm - A unit of measurement for the electrical resistance equal to that of a conductor in which a current of one ampere is produced by a potential of one volt across its terminals. One ohm is the resistanc. Used . e in a circuit when one volt maintains a current of one amp. The unit, originally ohma or ohmad, was first used by Charles Tilston Bright and Latimer Clark in 1861 and is still in use today.. Used . ...