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S
SCRIM
1) A coarse gauze
2) A fine metal mesh used to reduce the intensity of light from TV lanterns
without affecting color temperature.
SECONDARY LIGHTING
Separately powered lighting system for use throughout the building in the
event of failure of the primary system. Usually battery powered. Maintained
lighting is on all the time, regardless of changes in the stage lighting,
and is battery backed-up.
Non-maintained systems only light in the event of power failure or an alarm
condition. Secondary lighting systems should be regularly checked by an
electrician to ensure they operate correctly.
SELECON
New Zealand-based manufacturer of theater lanterns.
SEMIOTICS
The study of signs - many conventions in lighting design rely on signs (blue
must be night-time, red is evil etc.)
SERIES SPLITTER
An adaptor consisting of a plug and two sockets wired in series.
SHIFTER
The common Australian term for AJ's, c-wrenches, spanners etc.
SHINS
The lowest lantern on a lighting boom. Named because of the proximity of
sharp parts of the lantern to the flesh of the lower leg. This especially
applies to standard dance lighting, when the lanterns are positioned at
optimum height to light dancers on the stage floor. When the boom is
lighting scenic items or large groups, the lanterns may be higher up the
boom and the term will no longer apply.
Also known as SHIN BUSTER. The other lanterns on the boom are known as MIDS
and HEADS.
SHORT NOSE
Normally refers to a Short-Nose Parcan - a lighting instrument that uses a
normal size PAR lamp, but has been shortened to either make it less
obtrusive, or to get a wider beam angle.
SHUTTER
Part of a profile lantern. Metal blade which can be used to shape the edge
of the beam. Shutters (normally four) are located in the gate at the center
of the lantern. Similar in effect to barndoors on a Fresnel or PC lantern,
but a lot more flexible.
SIGHTS
A pair of metal rings attached to the side or top of a followspot which
enables the operator to accurately line up the beam (by looking down the
length of the followspot through the rings) before turning it on.
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