Barco R9001950, Owner'S Manual

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3-2
Installation Guidelines
5976183 BARCOGRAPHICS 6500 31012001
Which screen type?
There are two major categories of screens used for projection equipment. Those used for front projected images and those for rear
projection applications.
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.
A high gain screen will provide a brighter picture but reduce the viewing angle.
What image size? How big should the image be?
The projector is designed for projecting an image size (video) from 1.00m (3.3ft) to 6.00m (19.7ft) with a aspect ratio of 5 to 4.
Projector Configurations
Which configuration can be used ?
The projector can be installed to project images in four different configurations :
Front/table
Rear/table
Front/ceiling or
Rear/ceiling
Front/Table
Front/Ceiling
Rear/Table
Rear/Ceiling
Positioning the Projector
Drawing are given for a nominal lens position.
Definitions of the Abbreviation on drawings
B = Distance between ceiling and top of the screen or between floor and bottom of the screen.
A = Correction value, distance between bottom side of projector (without feet) and middle of the lens. Value to be subtracted from
B to obtain the correct installation position. (A value is a constant value for all screen widths and type of lenses, A = 124.1 mm or
4.89 inch)
CD = Total distance between projector and ceiling or projector and floor.
SW = Screen width.
SH = Screen height (image height).
PD = Projector Distance, distance between screen and projector.