
GLOSSARY
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| attenuate incident light; screens with gain more than 1 direct more incident |
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| light to the audience but have a narrow viewing angle. For example: An |
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| image reflecting off a 10 gain screen appears 10 times brighter than it would |
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| if reflected off a matte white wall. Curved screens usually have larger gain |
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| than flat screens. |
Gamma ➤ | A feature provided on Madrigal Imaging | |
Correction |
| boosts the blue color output when required to provide improved picture |
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| 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 | |
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| on the screen. The hot spot always appears located along the line of sight |
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| and "moves" with the line of sight. High gain screens and rear screens |
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| designed for slide or movie projection usually have a hot spot. |
Input | ➤ | A physical connection route for a source signal defined by two numbers; |
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| a switcher number and a slot number. If the switcher number is 0, the input |
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| is a projector input. |
Input Memory ➤ | A setup memory which is associated with a particular projector or | |
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| 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 |
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| vertical resolution without increasing the horizontal line rate. If the resulting |
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| 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. | |
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| There are four different keypad types which may be used with the projector: |
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| |
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| about these keypads, refer to the keypads entry in section 3.2, Projector Basics. |
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