Digital Projection
M-Vision 930 Series
APPENDIX F: GLOSSARY OF TERMS
Reference Guide
129
Rev A January 2014
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.
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.
Noise
Electrical interference displayed on the screen.
NTSC (National Television Standards Committee)
The United States standard for television - 525 lines transmitted at 60
interlaced
fields
per second.
Notes
Summary of Contents for Titan 930
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