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Digital Projection Ltd. M-Vision WUXGA Series
Hertz (Hz)
Cycles per second.
Horizontal Scan Rate
The rate at which the lines of the incoming signal are refreshed. The rate is set by the horizontal synchronization from the source
and measured in Hertz.
Hs + Vs
Horizontal and vertical synchronization.
Hue
The graduation (red/green balance) of color (applicable to NTSC).
I
Interlacing
A method of updating the image. The screen is divided in two fields, one containing every odd horizontal line, the other one
containing the even lines. The fields are then alternately updated. In analog TV interlacing was commonly used as a way of
doubling the refresh rate without consuming extra bandwidth.
Interleaving
The alternation between left and right eye images when displaying 3D.
L
LED (Light Emitting Diode)
An electronic component that emits light.
Letterboxing
Black margins at the top and bottom of the image. Letterboxing appears when a wider image is packed into a narrower frame
without changing the original aspect ratio.
Lumen
A photometric unit of radiant power. For projectors, it is normally used to specify the total amount of emitted visible light.
Luminance
Also known as 'Y' , this is the part of a Component Video signal which affects the brightness, i.e. the black and white part.
Rev A January 2024
page 132
APPENDIX D: GLOSSARY OF TERMS
Notes
Reference Guide
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