Digital Projection
HIGHlite 730 & 740 Series
APPENDIX F: GLOSSARY OF TERMS
Reference Guide
153
Rev E March 2014
Appendix F: 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.
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.
Not to be confused with horizontal and vertical
blanking (video signal)
.
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
S-Video
and
Component Video
signals, brightness is the same as
luminance
.
Notes
