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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 Lighting. he lamp and its position relative to the filament canno . Used Lighting. ...

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 Lighting. 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 . Used Lighting. around putting 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

Ellipsoidal Reflector Spotlight - ERS is an acronym standing for Ellipsoidal Reflector Spotlight. These are sometimes known by their brand names, especially Leko, short for Lekolite, the name given to them by their inventors, Joseph L. Used Lighting. evy and Edward Kook. ETC's Source Four has become a very popular ERS throughout the industry, and some people use the term Source Four to refer to spotlights in general. They come in . Used Lighting. many forms, and are the most numerous and important instrument type in use. The flexibility of the ERS allows them to fulfill the bulk of the lighting roles in the theatre, from area lighting to close specials, from l...

Lighting instruments - There are a variety of instruments frequently used in the theater. Although they vary in many ways they all have the following four basic components in one form or another...

* Box/Housin. Used Lighting. g - a metal or plastic container to house the whole instrument and prevent light from spilling in un-wanted directions.
* Source of light (bulb or lamp).
* Lens or opening. Used Lighting. - the gap in the housing where the light is intended to come out.
* Reflector - behind or around the light source in such a way as to direct more light towards the lense or opening.

Additional feat...

DMX-512 - DMX512, often shortened to DMX (Digital MultipleX), is a communications protocol used mainly to control stage lighting.

Developed by the Engineering Commission of USITT, the standard star. Used Lighting. ted in 1986, with subsequent revisions in 1990 leading to USITT DMX512/1990. ESTA took control of the standard in 1998 and began a revision process. The new standard, known officially. Used Lighting. as "Entertainment Technology — USITT DMX512–A — Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories", was approved by ANSI in November, 2004. This current standar...