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P
PIN SPOT
- A lantern focused very tightly on a small area (eg an actors head).
- A luminair used widely in disco installations, consisting of a low voltage (6V) Par 36 lamp (lamp code is 4515) with a very narrow beam in a metal case with built in transformer.
- Spotlight designed to accept PAR lamps that cast bright, confined beams of concentrated light.
PIPE ENDS
Lanterns hung at the very ends of lighting bars - used for crosslight and very common in dance or musical theater.
PLAN
A scale drawing showing a piece of scenery, the whole set, lighting layout etc from above. Lighting plans are usually drawn onto the theater's groundplan. A view from the side of the set (or a piece of scenery) is known as an ELEVATION.
PLASA / P.L.A.S.A.
Professional Lighting and Sound Association (UK).
PLAYBACK
The part of a computerized lighting control desk which enables the operator to recall cues from the electronic memory.
PLENUM
The space between the ceiling and the floor or roof above.
PLOT
- List of preparations and actions required of technical crews during the performance (eg Sound Plot = list of sound cues and levels in running order.) In the US, the term plot refers to a plan. (eg Light Plot = scale plan showing lighting instruments).
- The basic story thread running through a performance / play which gives the reason for the character's actions.
PLOTTING SESSION
Time during which the plot for each department is prepared (eg Lighting Plotting session)
POINT CUE
A cue inserted during / after plotting between two existing cues. (eg 8.5 is inserted between cues 8 and 9). Most computer lighting desks have the ability to either insert an additional cue in a sequence, or to link to another cue out of the sequence, and then link back again. Inserting cues into a plotted sequence on a manual lighting desk is more awkward, because it is a running plot (where only the changes between cues are noted down). Sound cues within a sequence should have lettered cues (e.g. 8A is a fade up of Cue 8 and 8B is the fade out).
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