2 lens selection, 3 lens formulas, Lens selection – Barco R9010010 User Manual
Page 23: Lens formulas, Installation guidelines, 2 lens selection how to select, 3 lens formulas formulas
3. Installation Guidelines
TLD HB(2.0–2.8:1)
R9842080
TLD HB(2.8–5.0:1)
R9842100
TLD HB(5.0–8.0:1)
R9842120
3.7.2
Lens selection
How to select ?
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.
3.7.3
Lens formulas
Formulas
Metric formulas (meter)
Inch formulas (inch)
TLD(0.8:1)
PD=0.85xSW-0.05
PD=0.85SW-1.97
TLD(1.2:1)
PD=1.22xSW-0.01
PD=1.22xSW-0.39
TLD(1.6–2.0:1)
PD
min
=1.62xSW-0.09
PD
max
=2.03xSW-0.13
PD
min
=1.62xSW-3.54
PD
max
=2.03xSW-5.12
TLD(2.0–2.8:1)
PD
min
=2.03xSW-0.17
PD
max
=2.88xSW-0.24
PD
min
=2.03xSW-6.69
PD
max
=2.88xSW-9.45
TLD(2.8–5.0:1)
PD
min
=2.84xSW-0.16
PD
max
=5.18xSW-0.38
PD
min
=2.84xSW-6.30
PD
max
=5.18xSW-14.96
TLD(5.0–8.0:1)
PD
min
=4.97xSW-0.01
PD
max
=8.28xSW-0.29
PD
min
=4.97xSW-0.39
PD
max
=8.28xSW-11.42
TLD HB(0.8:1)
PD=0.85xSW-0.05
PD=0.85SW-1.97
TLD HB(1.2:1)
PD=1.22xSW-0.01
PD=1.22xSW-0.39
TLD HB(1.6–2.0:1)
PD
min
=1.62xSW-0.09
PD
max
=2.03xSW-0.13
PD
min
=1.62xSW-3.54
PD
max
=2.03xSW-5.12
TLD HB(2.0–2.8:1)
PD
min
=2.03xSW-0.17
PD
max
=2.88xSW-0.24
PD
min
=2.03xSW-6.69
PD
max
=2.88xSW-9.45
TLD HB(2.8–5.0:1)
PD
min
=2.84xSW-0.16
PD
max
=5.18xSW-0.38
PD
min
=2.84xSW-6.30
PD
max
=5.18xSW-14.96
TLD HB(5.0–8.0:1)
PD
min
=4.97xSW-0.01
PD
max
=8.28xSW-0.29
PD
min
=4.97xSW-0.39
PD
max
=8.28xSW-11.42
R5976563 BARCOR10 SLM 20/10/2004
19