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3. Installation Guidelines
Screens are rated by how much light they reflect (or transmit in the case of rear projection systems) given a determined amount
of light projected toward them. The 'GAIN' of a screen is the term used. Front and rear screens are both rated in terms of gain.
The gain of screens range from a white matte screen with a gain of 1 (x1) to a brushed aluminized screen with a gain of 10 (x10)
or more. The choice between higher and lower gain screens is largely a matter of personal preference and another consideration
called the Viewing angle. In considering the type of screen to choose, determine where the viewers will be located and go for the
highest gain screen possible. A high gain screen will provide a brighter picture but reduce the viewing angle. For more information
about screens, contact your local screen supplier.
What image size? How big should the image be?
The projector is designed for projecting an image size : min 1.00m (3.3ft) to max 15 m (49.2ft) (depending on the ambient light
conditions), with an aspect ratio of 4 to 3.
3.2 Configuration
Which configuration can be used?
The projector can be installed to project images in four different configurations:
•
Front/table
•
Rear/table
•
Front/ceiling
•
Rear/ceiling
Positioning the projector
Table mounted, front projection
Table/Top side facing ceiling
Projector
Image 3-1
Table mounted configuration
12
SIDE VIEW
Optical axis projection lens
PD
A
CD
Floor
CD = SH/2 + B - A
TOP VIEW
SW
SH
Floor
BACK VIEW
Screen
SH
B
SW
Screen
R5976654 SLM R12+ 27/01/2005
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