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Installation Guidelines
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5976067 BARCOCINE 7 151299
Positioning the projector
To indicate a correct installation position it is necessary to know the distance :
- projector - ceiling or projector - floor
- projector - screen
To find this correct position for the projector, equipped with HD145 lenses, formulas are given in the next paragraph.
Abbreviations used on drawing and in formulas
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.
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Lensformulas
Formulas for Projector to screen distance and correction value A with regard to the screen width for
HD145 lenses.
Metric
PD[m] = 1.2642 x SW[m] + 0.2156
A[cm] = 12 x SW[m] - 22.88
Inch
PD = 1.2642 x SW + 8.48
A = 0.12 x SW - 9
Max phosphor width on CRT = 11 cm (4.33 inch)
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