Digital Projection HIGlite 8000 Series, Руководство пользователя

Страница: 80 / 84

Digital Projection
HIGHlite 8000 Series
APPENDIX C: GLOSSARY OF TERMS Reference Guide
74 Rev F July 2014
Brightness (optical)
Describes how ‘bright’ an image that is projected onto a screen appears to an observer.
Cold mirror
A mirror that preferentially reflects or transmits infra-red light. In a projector, a cold mirror is used to reflect the visible component of the lamp
beam into the illumination optics and transmit the unwanted infrared radiation into an absorber.
Color gamut
The spectrum of color available to be displayed.
Color temperature
The position along the black body curve on the chromaticity diagram, normally quoted in Kelvin. It takes into account the preset values for
color balance in the service set-up to take up the variations in the prism. The projector allows you to adjust this temperature (i.e. adjust the
picture color temperature).
ColorMax
A method of accurately color-matching projectors together.
Contrast (electronic control)
The adjustment of the white point of the image without affecting the black point. This increases the intensity range of the displayed image.
Contrast (optical)
The intensity difference between the darkest and lightest areas of the screen.
Crop
Remove part of the projected image.
Alternatively, fit an image into a frame with a different aspect ratio by removing part of the image. The image is resized so that either its
length or its width equals the length or width of the frame, while the other dimension has moved outside the frame; the excess area is then cut
out.
Notes