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glossary
 
A-BC-DE-FG-KL-NO-ST-Z



T

Throw Distance
The distance from a lighting fixture to the object being lit.

Tormentor
A wall-mounted pipe for mounting lighting fixtures.

Tormentor
Lights mounted Upstage of tormentor. (hard of soft masking) Set stage right and stage left just upstage of the proscenium.

Transient Adaptation
The process of the eye adapting from viewing an area at one level of light to an area of higher or lower level.

Transmission Factor
The ability of a medium to allow for the transmission of light.

Trim Height
The height from the stage floor at which a batten is set.

Truss Section
A sturdy, lightweight support structure.

Turn-Around
An item comprising two connectors that are of the same type and sex, electrically connected together.

Twofer
A special power cord that has one male connector electrically connected to two female connectors via two separate cables.

U

Upstage
The area on stage farthest from the audience.

W

Wash
Even, overall light on performance space or background.

Wattage
The power consumed by a circuit.

X

X-Ray
See striplight.

Z

Zoom
An optical system where the lenses adjust.