Runco Reflection VX-3c Owner's Operating Manual page 116

GLOSSARY
Menu!
NTSC Video!
Optical Screen!
PAL Video!
Pincushion!
Pixel (picture element)!
Pixel Phase!
Pixel Tracking!
Projector-to-Screen Distance!
Protocol!
Pull-down List!
Rear Screen!
Resizing!
Resolution (lens)!
Resolution (projector)!
Retrace Time!
Rise Time!
A list of selectable options displayed on the screen.
A video output format of some video tape and disk players. There are two types
of NTSC (National Television Standards Committee) video: NTSC 3.58 and
NTSC 4.43. NTSC 3.58 is used primarily in North America and Japan. NTSC
4.43 is less commonly used.
A type of rear-projection screen which re-directs light through the screen to
increase image brightness in front of the screen. Screen gain is usually greater
than 1 but audience viewing angles are reduced.
PAL (Phase Alternating Line) video is a 50 Hz standard with 768 x 576 resolu-
tion. It is found on some video tape and disk players (used primarily in Europe,
China and some South American and African countries).
A distortion of the image shape characterized by concave or convex borders.
The smallest discernible element of data from a computer-generated image.
The phase of the pixel sampling clock relative to incoming data.
The frequency of the pixel sampling clock, indicated by the number of pixels per
line.
The distance between the projector's front feet centers and the screen. Also
called "Throw Distance".
The type of code format called "A" or "B" utilized by the remote keypad(s). The
default protocol set at manufacture is Protocol "A". By using two different key-
pad protocols, adjacent projectors can be controlled independently with their
remote IR keypads.
A selectable menu item that unfolds into a list of options pertaining to it.
A translucent panel for screen projection. Incident light travels through the inci-
dent surface of a rear screen and forms an image on the other surface.
The ability to manipulate through software commands the physical size, place-
ment and/or aspect ratio of an image.
The maximum number of alternate white and black horizontal lines that can be
distinguished on a screen when a photographic target is placed between the lens
and a light source and illuminated by that source.
The maximum number of pixels that the projector can display horizontally and
vertically across an image, such as 1024 x 768 (called XGA).
(Horizontal) The minimum time required for a CRT projector to move the posi-
tion of the scanning spot from the right edge to the left edge.
The time required by the video amplifier of the projector to increase its output
from 10% to 90% of the maximum value.
A-4