|
S
SMOKE MACHINE
A Smoke Machine or Fogger is an electrically powered unit which produces clouds of white non-toxic fog (available in different flavours/smells) by the vaporisation of mineral oil. It is specially designed for theater & film use. A Haze machine, Hazer or Diffusion Fogger is used to produce an atmospheric haze, rather than clouds of smoke, and is used by many lighting designers to reveal airborne light beams.
The first smoke machines came onto the market in the late 1970's. It's essential to know whether your venue uses SMOKE DETECTORS on the fire alarm system.
SMPTE (SOCIETY OF MOTION PICTURE AND TELEVISION ENGINEERS)
A timing signal used primarily to synchronize video, film, and audio recording and playback systems. SMPTE timecode is measured in hours, minutes, seconds, and frames. Some lighting control consoles can be set up to read SMPTE time code--automatically executing cues at specific times. SMPTE or other time-code systems including MIDI timecode (MTC) are commonly used in completely automated shows such as those found at theme parks to keep lighting, sound, and motion control systems in sync.
SNAP
A lighting or sound cue with no fade time - the cue happens instantly.
SNOOT
Unit hung in front of fixture to confine light beams. Also known as Top Hat or High Hat.
SOCAPEX / SOCA
A multipin connector which can carry a series of lighting or sound circuits. Very robust and designed for touring. Available in 19 pin (6 circuits) and 37 pin (12 circuits) configurations. Sometimes shortened to SOCA.
SOFT CHASE
A fading chase sequence.
SOFT LIGHT
Asymmetric flood light used as a fill light in TV studios to eliminate shadows and balance the key light.
SOFT PATCH
A component of most computer memory consoles that allows dimmers to be patched electronically to control channels within the system. Generally multiple dimmers can be patched to single control channels, but a dimmer can not be patched to more than one control channel. As a greater variety of other types of devices are attached to systems primarily designed to control only dimmers, the relationship of control channels to dimmers becomes increasingly abstract. A dimmer in the system may actually represent a function of an automated fixture or a control for a strobelight or fog machine.
SOLID ANGLE
A measure of that portion of space about a point bounded by a conic surface whose vertex is at the point. It is defined as the ratio of intercepted surface area of a sphere centered on that point to the square of the sphere's radius. It is expressed in steradians.
SOLO
A mode affecting bump buttons on a lighting control console. When a bump button is in solo mode it will momentarily take all channels except those assigned to the bimp button to zero.
|
