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Digital Projection E-Vision Laser 4K Series
Reference Guide
APPENDIX D: GLOSSARY OF TERMS
Rev A June 2017
Interlacing
A method of updating the image. The screen is divided in two
, 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
without
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 ‘
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
Notes
