Christie Digital Systems CSP70 Channel Number, Checkbox, Chrominance, Color Gamut, Color Shift

Appendix A: Glossary

Channel Number	' A number that uniquely identifies a specific channel retained in projector memory.
	The projector can retain up to 50 channels.
Checkbox	' A menu item that indicates whether an option is currently in effect (checked) or not
	(unchecked).
Chrominance	' The signal representing the color information (hue and saturation) when the image is
	represented as separate chrominance and luminance. Same as “chroma”.
Color Gamut	' The range of colors allowed in a specific system, as defined within a triangular area
	located on the CIE color locus diagram whose corners are the three primaries defined
	in the system. Also known as color space.
Color Shift	' A change in the tint of a white field across an image.
Color Temperature	' The coloration (reddish, white, bluish, greenish, etc.) of white in an image, measured
	using the Kelvin (degrees K) temperature scale. Higher temperatures output more
	light.
Component Video	' See YCbCr or YPbPr.
Composite Video	' The output of video tape players and some computers, characterized by
	synchronization, luminance and color signals combined on one output cable.
Contrast (ratio)	' The degree of difference between the lightest and darkest areas of the image.
Convergence	' The alignment of the red, green, and blue elements of a projected image so that they
	appear as a single element.
Curved Screen	' A projection screen which is slightly concave for improved screen gain. Curved
	screens usually have screen gains, which are greater than 1 but viewing angles much
	less than 180°. Curved screens are not recommended for use with this projector.
DDC ' The Display Data Channel VESA standard enables communication between PCs and
	monitors, and is based on E-EDID protocol.
DDI	' A “direct digital interface” signal can be supplied to the projector via an optional
	digital input module installed in INPUT 5. For example, you can input an SMPTE-
	259M signal using a Serial Digital Input Module or input an SMPTE-272M signal
	from a Digital HDTV Serial Input Module.
DMD ' Digital Micromirror Devices used in this projector for processing red, green, and
	blue color data.
Decoder	' Located at INPUT 3 and INPUT 4, this device converts NTSC 3.58, NTSC 4.4, PAL,
	PAL-N, PAL-M, or SECAM to RGB video.
Detail	' The sharpness of a display from a video source.
Diffused Screen	' A type of rear-projection screen which spreads the light striking it. Screen gain is less
	than 1 but audience viewing angles are increased.
Display Setting	' An adjustment that affects the display of an image. Such display settings include
	contrast, brightness, tint, blanking, size, offsets, and others.

A-2 RPMSP & CSP70-D100U User’s Manual