Table of Contents
Advertisement
Digital Projection INSIGHT 4K Dual LED & Quad Series
APPENDIX E: GLOSSARY OF TERMS
UHD
Notes
resolution
pixels
aspect ratio
A
corresponding to 3840 x 2160
(a widescreen
of 16:9). UHD has twice the horizontal and vertical resolution
of 1080p.
Vertical Scan Rate
The rate at which the
frames
of the incoming signal are refreshed. The rate is set by the vertical
synchronization
from the source and
measured in Hertz.
Vignetting
Optical cropping of the image caused by the components in the projection lens. This can happen if too much offset is applied when
positioning the image using the lens mount.
ZScreen
A special kind of light modulator which polarizes the projected image for 3D viewing. It normally requires that images are projected onto a
silver screen. The ZScreen is placed between the projector lens and screen. It changes the polarization of the projected light and switches
between left- and right-handed circularly polarized light at the field rate.
Reference Guide
Rev B June 2016
page 72
Advertisement
Table of Contents
