GLOSSARY

 

 

attenuate incident light; screens with gain more than 1 direct more incident

 

 

light to the audience but have a narrow viewing angle. For example: An

 

 

image reflecting off a 10 gain screen appears 10 times brighter than it would

 

 

if reflected off a matte white wall. Curved screens usually have larger gain

 

 

than flat screens.

Gamma

A feature provided on Madrigal Imaging MP-8 and MP-9 models which

Correction

 

boosts the blue color output when required to provide improved picture

 

 

intensity and color uniformity.

Geometry

The reproduction of a straight and rectangular image.

Help Page

A display of help information on the projection screen.

Horizontal

Also called horizontal scan rate or line rate, this is the frequency at which

Frequency

 

scan lines are generated. Horizontal frequencies vary amongst sources.

Hot Spot

A circular area of a screen where the image appears brighter than elsewhere

 

 

on the screen. The hot spot always appears located along the line of sight

 

 

and "moves" with the line of sight. High gain screens and rear screens

 

 

designed for slide or movie projection usually have a hot spot.

Input

A physical connection route for a source signal defined by two numbers;

 

 

a switcher number and a slot number. If the switcher number is 0, the input

 

 

is a projector input.

Input Memory

A setup memory which is associated with a particular projector or

 

 

switcher input.

Interface

A device that accepts an input signal for display by the projector.

Interlace

A method used by video 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.

Keypad

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 presenter's. For more information

 

 

about these keypads, refer to the keypads entry in section 3.2, Projector Basics.

A.4

Page 114
Image 114
Madrigal Imaging MP-9 manual Gamma, Correction, Geometry, Help, Horizontal, Hot Spot, Input Memory, Interface, Interlace