The complete assembly of a bulb, filament, base, etc.
A pipe, usually aluminum, that has a fixtures attached at even intervals.
A commonly used term for an ellipsoidal spotlight. Named after its inventors Levy and Kook. The names Leko and Lekolite are trademarked by Strand Lighting Co.
A transparent material, usually glass, shaped to bend light rays as they pass through it.
A height adjustable stand or tower.
The process of the eye adapting to changes from dark to light.
A narrow platform mounted above the performing area used for mounting luminaire's, often incorporated into a truss rig or into the grid in a theatre.
The diagrammatical layout of luminaire's and related equipment.
A background having no detectable detail.
A term that usually means 120 AC volts.
The lamp or lighting instruments placed on a circuit.
A unit of (light) flux. 1 Lumen/ft2 = 1 fc
A complete unit for the purpose of generating usable and somewhat controllable light.
A metric unit of measurement for illumination. 1 Lumen/m2 (10 lux = 1 ftc)
A ballast that uses a magnetic filed to limit electrical current.
To hide from view. To cut off part of a beam of light.
A patching apparatus that can be a patch panel or diode pin matrix.
A contral console that has computerized functions and an ability to electronically store data.
A compact striplight that uses 1 to 4 groups of ten 12 volt lamps wired in a series circuit.
To use light and shadow to entrance three-dimensionality.
An electrical cable that generally has more than three conductors.
A cyclorama light placed close to the cyclorama, generally less than 8'.
A current carrying conductor that is electrically connected to neutral.
A circuit supplying electrical power to a luminaire by means of a switch or a relay in order to permit an on-off function rather than a dimming function.
A lamp designation that means "narrow spot".
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