Christie CP2000-X User Manual page 142

GLOSSARY
In the event of a fire, for example, the life safety system may turn on the auditorium
lighting to full intensity, cancel the presentation audio and replace it with a PA
microphone or pre-recorded announcement, turn the lamp off, flash warning lights,
and so forth. Every jurisdiction may have different statutory requirements for life
safety systems.
Linearity 
The reproduction of the horizontal and vertical size of characters and/or shapes over
the entire screen.
Line of Best Viewing 
When light from a projector is incident on a screen, the light reflects from the screen
such that the angle of reflection equals the angle of incidence. The Line of Best
Viewing is along the line of reflection.
LiteLOC
 A Christie software feature where samples of output light from a projector trigger

automatic adjustments in the lamp ballast power in order to maintain a constant light
output.
Loopthrough 
The method of feeding a series of high impedance inputs from a single video source
(Loopthru)
with a coaxial transmission line in such a manner that the line is terminated with its
characteristic impedance at the last input on the line. Not applicable in CP2000.
Lumen 
The unit of measure for the amount of visible light emitted by a light source. Rarely
used in cinema applications.
Luminance 
The signal representing the measurable intensity (comparable to brightness) of an
electronic image when the image is represented as separate chrominance and
luminance. Luminance also expresses the light intensity of a diffuse source as a
function of its area; measured in lumens or candles per square foot (1 lumen per
square foot = 1 footlambert). SMPTE RP 98 calls for a luminance of 12 to 22
footlamberts for theatre screens. See: Footlambert.
Lux 
The amount of visible light per square meter incident on a surface.
1 lux = 1 lumen/square meter = 0.093 foot-candles
Menu 
A list of selectable options displayed on the Touch Panel Controller.
Metadata 
Descriptive data about the format of the content—i.e., "data about data". When
receiving metadata, digital cinema projectors will "know" the correct aspect ratio of
the image, and the sound processor will "know" the correct format of the audio, all
without effort on the part of the person setting up the show on a particular projector.
NTSC Video 
A 525-line resolution video output format of some video tape and disc players. There
are two types of NTSC (National Television Standards Committee) video: NTSC
3.58 and NTSC 4.43. NTSC 3.58 is used primarily in North America and Japan.
NTSC 4.43 is less commonly used.
Non-cinema 
Alternative program material such as concerts, plays, sporting events, and potentially
corporate training or conferencing, presented in theatres in addition to motion picture
exhibition. A non-cinema source connects to one of the projector's DVI ports.
Non-Sync 
Audio played in a theatre, generally from a CD, when the cinematic presentation is
not running, such as during intermissions and prior to the start of film presentation.
A-6 CP2000-X User Manual
020-100031-01 Rev. 1 (03-2009)