Digital Projection M-Vision 930 3D Series, Инструкция по установке и быстрому запуску

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Digital Projection M-Vision 930 Series
Reference Guide
APPENDIX F: GLOSSARY OF TERMS
Rev C February 2015
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.
Lens extension
The nominal distance between the front of the projector and the outer end of the lens. Lens extension is measured when the lens is focused
at infinity, and fully extended. At other focus settings, the extension could be up to 10 mm less.
Throw distance should be measured or calculated from the outer end of the lens. A throw distance measured or calculated without taking
into account the lens extension value may produce an incorrect throw ratio .
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.
Notes