Electrohome Marquee Ultra Series User Manual page 106

I
GLOSSARY
InputMemory
Interface
Interlace
Keypad
Keystone
Learn Screen
Linearity
Line of Best
Viewing
Locator Assemb!y
Loopthrough
(Loopthru)
Lumen
Lux
Menu
A setup memory which is associated with a particular projector or switcher
input.
A device that accepts an
A method used by video
input signal for display by the projector.
tape players and some computers to double the
vertical resolution without increasing the horizontal line rate. If the resulting
frame rate is too low, the image may flicker depending on the image content.
A device which allows the user to control projector settings and operation.
There are four different keypad types which may be used with the projector:
built-in, IR remote, wired remote, and presenters. For more information about
these keypads, refer to the keypads entry in section 3.2,
Projector Basics.
A distortion of the image which occurs when the top and bottom borders of
the image are not equal in length. Side borders slant in or out, producing a
keystone shaped image.
An ACON function which stores screen position data in memory for M.ure
reference. Learn Screen is usually performed only once per projector
installation. If the ACON Locator Assembly or screen is moved (i.e., the
projector installation changes to ceiling mount), the Learn Screen function
must be repeated. Note: ACON is an optional projector feature.
The reproduction of the horizontal and vertical size of characters and/or shapes
over the entire screen.
When light from a projector is incident on a screen, the light reflects from the
screen such that the angle of reflection equals the angle of incidence. The
Line of Best Viewing is along the line of reflection.
The Locator Assembly, situated on the front of projectors which include the
ACON automatic convergence feature, is the "eye" of the ACON system. It
includes a photosensor/lens component which mechanically scans the projected
display at each convergence point while sensing relative positions of each
projected color.
The method of feeding a series of high impedance inputs from a single video
source with a coaxial transmission line in such a manner that the line is
terminated with its characteristic impedance at the last input on the line.
The amount of visible light emitted by a light source is measured in lumens.
The amount of visible light per square meter incident on a surface. '
1 lux = 1
lumen/square meter = 0.093 foot-candles
A list of options which are displayed on the screen for selection by the user.
A-4