Glossary
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Reverse Image —
Feature that allows you to flip the image horizontally. When
used in a normal forward projection environment text, graphics, etc. are
backwards. Reverse image is used for rear projection.
RGB —
Red, Green, Blue
—
typically used to describe a monitor that requires
separate signals for each of the three colors.
SECAM —
A French and international broadcast standard for video and
broadcasting, closely related to PAL but with a different method of sending color
information.
SVGA —
Super Video Graphics Array
—
800 x 600 pixels count.
SXGA —
Super Extended Graphics Array,
—
1280 x 1024 pixels count.
UXGA —
Ultra Extended Graphics Array
—
1600 x 1200 pixels count.
VGA —
Video Graphics Array
—
640 x 480 pixels count.
XGA —
Extended Video Graphics Array
—
1024 x 768 pixels count.
WXGA —
Wide Extended Graphics Array — 1280 x 800 pixels count.
Zoom Lens —
Lens with a variable focal length that allows the operator to move
the view in or out making the image smaller or larger.
Zoom Lens Ratio —
Is the ratio between the smallest and largest image a lens can
project from a fixed distance. For example, a 1.4:1 zoom lens ratio means that a 10
foot image without zoom would be a 14 foot image with full zoom.
