Digital Projection
HIGHlite 730 & 740 Series
APPENDIX F: GLOSSARY OF TERMS
Reference Guide
158
Rev E March 2014
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 an
S-Video
or
Component Video
signal which affects the brightness, i.e. the black and white part.
Modal setting
A projector setting that only affects the currently displayed input.
Noise
Electrical interference displayed on the screen.
NTSC (National Television Standards Committee)
The United States standard for television - 525 lines transmitted at 60
interlaced
fields per second.
OSD (on-screen display)
The projector menus allowing you to adjust various
global
and
modal settings
.
PAL (Phase Alternate Line)
The television system used in the UK, Australia and other countries - 625 lines transmitted at 50
interlaced
fields per second.
Pillarboxing
Black margins at the left and right of the image. Pillarboxing appears when a narrower image is packed into a wider frame without changing
the
aspect ratio
.
Notes
