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S
SAFARI
Lighting control software manufactured by Avab.
SAFETY CHAIN
Chain or wire fixed around lantern and lighting bar or boom to prevent
danger in the event of failure of the primary support (eg Hook Clamp). A
requirement of most licensing authorities. In the UK, current legislation
SANDNET
Network operating system integrating standard communications protocols with
a multitude of industry and manufacturer-specific control protocols.
SATURATION RIG
An arrangement of lanterns in which to maximum number of spotlights is
placed in every possible position.
SAVE
To extinguish a particular lighting instrument (e.g. "Save 14"). The
instrument's lamp (and its color filter) are thus saved for another
occasion. Used when setting up lighting states.
SCANNER
General name for a moving mirror lantern, especially those used in discos,
rather than the more flexible units used in theater.
SCENE
1) A pre-programmed lighting state which can be faded in and out during a
one night show when there's no time for plotting.
2) A subdivision of a play.
SCOOP
A special type of floodlight consisting of a lamp mounted in a large
ellipsoidal reflector. The body of the instrument is usually circular which
means a soft edged circular beam is produced. A standard FLOOD has a
rectangular body.
SCR
Silicon Controlled Rectifier.
SCREEN (PROJECTION)
Many types of projection screen are available. Some are multi-purpose, some
only for front projection, some only for back projection. If a screen is not
self-supporting, it often has eyelets around the outside edge which are used
to "lace" the screen onto a larger frame.
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