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CP2000-SB User Manual
020-100162-06 Rev. 1 (03-2014)
Section 1: Introduction
INTERFACE MODULE
A device, such as the
Serial Digital Input Module
, that accepts an input signal for display by the projector. Interfaces
are not used with the
CP2000
.
INTERLACE
A method used by video tape players and some computers to double the vertical resolution without increasing the
horizontal line rate. If the resulting frame/field rate is too low, the image may flicker depending on the image content.
KEYSTONE
A distortion of the image which occurs when the top and bottom borders of the image are unequal in length. Side
borders both slant in or out, producing a “keyhole” shaped image. It is caused when the lens surface is not parallel to
the screen.
LAMPLOC™
A Christie software feature where samples of output light from a projector guide the precise position of the lamp along
3 axes—vertical, horizontal and distance to lens—so that lamp performance and output is maximized.
LIFE SAFETY
A safety control system integrated into the HVAC, fire alarm, and other infrastructure components of the theatre as well
as the presentation system.
Comment
: 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 over time.
LOOPTHROUGH (LOOPTHRU)
The method of feeding a series of high impedance inputs from a single video source 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.
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