Digital Projection E-Vision Laser WQ120 Series, Инструкция по установке и быстрому запуску

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Digital Projection E-Vision Laser WQ120 Series APPENDIX D: GLOSSARY OF TERMS
Rev A May 2018
Appendix D: Glossary Of Terms
1080p
An
HDTV resolution
which corresponds to 1920 x 1080
pixels
(a widescreen
aspect ratio
of 16:9).
Anamorphic lens
A special lens which, when used with the
TheaterScope aspect ratio
, allows watching 2.35:1 content packed in a 16:9 source.
Aperture
The opening of the lens that determines the angle through which light travels to come into focus.
Aspect ratio
The proportional relationship between the width and the height of the projected image. It is represented by two numbers separated by a colon,
indicating the ratio of image width and height respectively: for example, 16:9 or 2.35:1.
Not to be confused with
resolution .
Blanking (video signal)
The section of the video signal where there is no active video data.
Not to be confused with
blanking (projection)
.
Brightness (electronic control)
A control which adds a fixed intensity value to every
pixel
in the display, moving the entire range of displayed intensities up or down, and is
used to set the black point in the image (see Contrast ). In Component Video signals, brightness is the same as luminance .
Brightness (optical)
Describes how ‘bright’ an image that is projected onto a screen appears to an observer.
Notes