3-5
Installation Guidelines
R5976262 BARCO SLM G5 Executive 13072001
Lenses
Which Lens has to be selected.
1 Determine the required screen width.
2 Determine the approximate position of the projector in the projection room with regard to the screen and measure the
projector-screen distance (PD).
3 Use the lens formulas to find the best corresponding PD with regard to the measured projector-screen distance for the required
screen width.
The desired lens is determined (the order number is given in the tabel).
Available lenses
TLD lenses :
Name Lens
Lenght mm (inch) Diameter mm (inch) Weight kg (lbs)
Order number
TLD (1.6-2.0:1)
R9840670
TLD (2.0-2.8:1)
R9840680
TLD (2.8-5.0:1)
R9840690
TLD (1.2:1)
R9840770
TLD (0.8:1)
R9840900
TLD (5.0-8.0:1)
R9840910
Lens formulas to calculate the projector distance
For TLD lenses :
Metric formulas (meter)
Inch formulas (inch)
TLD (0.8:1)
PD = 0.85 x SW - 0.05
PD = 0.85 x SW - 1.97
TLD (1.2:1)
PD = 1.22 x SW - 0.01
PD = 1.22 x SW - 0.39
TLD (1.6-2.0:1)
Min :
PD = 1.62 x SW - 0.09
Min :
PD = 1.62 x SW - 3.54
Max :
PD = 2.03 x SW - 0.12
Max :
PD = 2.03 x SW - 4.72
TLD (2.0-2.8:1)
Min :
PD = 2.03 x SW - 0.16
Min :
PD = 2.03 x SW - 6.30
Max :
PD = 2.88 x SW - 0.23
Max :
PD = 2.88 x SW - 9.06
TLD (2.8-5.0:1)
Min :
PD = 2.84 x SW - 0.15
Min :
PD = 2.84 x SW - 0.15
Max :
PD = 5.18 x SW - 0.36
Max :
PD = 5.18 x SW - 0.36
TLD (5.0-8.0:1)
Min :
PD = 4.97 x SW - 0.01
Min :
PD = 4.97 x SW -0.40
Max :
PD = 8.28 x SW - 0.29
Max :
PD = 8.28 x SW - 11.42
Note : Lens program to calculate the projector distance is available on the BARCO webside :
http://www.barco.com/projection_systems/customer_services/lens_program.asp
The lens program can also be ordered on floppy or CD.
