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Digital Projection INSIGHT 4K Dual LED & Quad Series
APPENDIX E: GLOSSARY OF TERMS
Anamorphic lens
Notes
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 (projection)
The ability to intentionally turn off, that is, set to black, areas around the edges of the projected image. It is sometimes referred to as "curtains"
since it can be used to blank an area of image that literally falls on the curtains at the side of the screen in a movie theater. Usually no image
resizing or geometric correction takes place and the "blanked" part of the image is lost.
blanking (video
signal).
Not to be confused with horizontal and vertical
Blanking (video signal)
The section of the video signal where there is no active video data.
Not to be confused with
blanking
(projection).
Blend region
The area of the image that is to overlap with another image in an
edge blend
setup. Sometimes called overlapping region.
Brightness (electronic control)
pixel
A control which adds a fixed intensity value to every
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).
Reference Guide
Rev B June 2016
page 65
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