Madrigal Imaging MP-8 User Manual download pdf (Page 115)

Keystone ➤ 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.

Learn Screen ➤ An ACON function which stores screen position data in memory for future

reference. Learn Screen is usually performed only once per projector installa-

tion. 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.

Linearity ➤ The reproduction of the horizontal and vertical size of characters and/or

shapes over the entire screen.

Line of Best ➤

Viewing

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.

Locator Assembly ➤ The Locator Assembly, situated on the front of the projector, 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.

Loopthrough ➤

(Loopthru)

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.

Lumen ➤ The amount of visible light emitted by a light source is measured in lumens.

Lux ➤ The amount of visible light per square meter incident on a surface.

1 lux = 1 lumen/square meter = 0.093 foot-candles

Menu ➤ A list of options which are displayed on the screen for selection by the user.

NTSC Video ➤ 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.

GLOSSARY

A.5

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Madrigal Imaging MP-8 User Manual Page 115