INSTALLATION GUIDELINES
INSTALLATION GUIDELINES
* Where to install the projector?
To indicate a correct installation position it is necessary to know the distance :
-projector - ceiling
-projector - screen
To find this correct position for the BARCOVISION 708, equipped with HD145 lenses, formulas are given in the next paragraph.
Abbreviations used on drawing and diagrams on next pages
B = Distance between ceiling and top of the screen.
A = Correction Value, extra value to be added to B to obtain the correct installation position. (In some cases the A value can be negative.)
CD = Total distance between projector and ceiling.
CD = A + B (When the result is negative, enlarge the distance between ceiling and top of the screen, mount screen lower, until CD becomes
zero | or positive) |
SW = Screen width.
PD = Perpendicular distance between screen and projector.
Formulas for Projector to screen distance and correction value A with regard to the screen width for HD145 lenses (metric).
Formulas (metric)
PD[m] = 1.21 x SW[m] + 0.213
A[cm] = 12.95 x SW[m] - 22.83
Formulas for Projector to screen distance and correction value A with regard to the screen width for HD145 lenses (inch).
Formulas (inch)
PD = 1.21 x SW + 8.39
A = 0.1295 x SW - 8.99
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