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E
E.R.S.
(ERS) Ellipsoidal Reflector Spotlight (US)
EARTH SPIKE
Copper rod inserted into the ground to maintain earth continuity (especially
when using generators etc.)
EARTHING
Electrical safety requirement that metal parts of electrical equipment are
connected to a common earth or ground point so that in the event of a fault,
excess current can be carried away, causing the fuse to blow. Known in the
USA as Ground.
EDISON PLUG
Standard domestic power connector in the USA - a plastic body with two
parallel metal contacts.
EFFECTS PROJECTOR
Lantern used to project the image from a rotating glass effects disc. Used
with an objective lens to produce the desired size of image. Commonly used
discs are clouds, flames and rain.
EFFECTS, LIGHTING
Animation Disc: A slotted or perforated metal disc which rotates in front of
a lantern to provide "movement" in the light. Most effective when used in
front of a profile carrying a gobo.
Effect Disc: A painted glass disc rotating in front of an effects projector
with an objective lens to focus the image (eg Flames, Rain, Snow).
Flicker Flame: Irregularly slotted rotating metal disc through which light
is shone onto a prism-type piece of glass which scatters the beam of light
and adds the "dancing" effect of firelight to a scene.
Gobo Rotator: Motorized device inserted into the gate of a profile lantern
that can be remotely controlled to rotate a gobo, usually with variable
speed and direction.
KK Wheel: Slotted metal disc which rotates in front of a lantern to break up
the light and provide movement. (Flicker Wheel)
Lightning: Created through the use of either strobe sources or photoflood
lamps.
Tubular Wave Ripple: Horizontal linear lamp around which a slotted cylinder
is rotated providing a rising light (as reflected from water onto the side
of a ship).
EGGS
Slang term used for Strand Pattern 123's, due to their shape.
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