InFocus Genesis P130 Manual De Instrucciones página 75

Glosario de términos
Term Description
Unbalanced A type of wiring using ground as a shielding method. More
susceptible to interference than balanced wiring.
Uniformity A measurement of the evenness of the brightness of white or a
particular colour across a display indicated as a percentage. A
measurement of 80% means the brightness of an image is 20% less
at its dimmest point compared to its brightest.
Unity Gain A projection screen with a gain rating of one that reflects light with a
wide viewing angle back to the viewer. See Gain.
Universal A remote control capable of running multiple components of multiple
Remote brands.
Upconvert To convert a lower resolution signal to a higher resolution. For
example, 480i to 720p.
UXGA UXGA is a display resolution measuring 1600 pixels horizontally and
1200 pixels vertically giving a total display resolution of 1,920,000
individual pixels. UXGA has an aspect ratio of 4:3.
VBR Variable Bit Rate. Refers to a variable data rate for encoding
MPEG where picture quality is maintained but data rates change in
accordance to the requirements of a video passage. Large amounts
of movement and detail require higher data rates. VBR tends to
create more space efficient MPEG files where picture quality is
maintained but data rates change.
Vertical Lens The purpose of Lens Shift is to eliminate keystoning and provide
Shift greater flexibility in the placement of the projector relative to the
screen. Lens shift may be a manual adjustment or motorized
depending on the projector.
Vertical lens shift will typically allow the projector to be placed
anywhere between 1.5 screen heights above or below the center
of the projection screen and may also be used to geometrically
align images when stacking projectors. Horizontal lens shift is also
available on some projectors.
VGA VGA is a display resolution measuring 640 horizontal pixels and 480
vertical pixels giving a total display resolution of 307,200 individual
pixels. VGA has a 4:3 aspect ratio.
VGA out A 15-pin D-sub output on the projector that allows you to connect
additional monitors or projectors to display the same image. Also
known as monitor loop-through or RGB out.
Video An output connector on the projector that allows a monitor or
Mirroring another projector to share the same video source.
Volt A measurement of electrical pressure.
Watt A unit of power. Volts multiplied by amperage equals watts.
White Level The signal level that corresponds to the maximum picture brightness.
The white level is set by the contrast control.
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