Barco FLM series

4. About lenses
4.3 Lens formulas for FLM R20+
Formulas
Lens
Throw ratio for
FLM
Metric formulas (meter) Inch formulas (inch)
TLD (0.8 : 1)
TLD HB (0.8 : 1)
0.75
PD = (0.77 x SW ) + 0.05 PD = (0.77 x SW ) + 1.97
TLD (1.2 : 1)
1.1
PD=(1.11xSW)-0.01 PD = (1.11 x SW ) - 0.39
TLD+(1.2:1)
1.2
PD= (1.23 x SW) + 0.11 PD = (1.23 x SW) + 4.33
TLD(1.6–2.0:1)
TLD HB (1.6 – 2.0 : 1)
1.45 – 1.85
PD
min
=(1.47xSW)-0.09
PD
max
= (1.85 x SW ) - 0.13
PD
min
= (1.47 x SW ) - 3.54
PD
max
=(1.85xSW)-5.12
TLD(2.0–2.8:1)
TLD HB (2.0 – 2.8 : 1)
1.82 – 2.55
PD
min
=(1.85xSW)-0.17
PD
max
= (2.62 x SW ) - 0.24
PD
min
= (1.85 x SW ) - 6.69
PD
max
=(2.62xSW)-9.45
TLD(2.8–5.0:1)
TLD HB (2.8 – 5.0 : 1)
2.55 – 4.55
PD
min
=(2.58xSW)-0.16
PD
max
= (4.71 x SW ) - 0.38
PD
min
= (2.58 x SW ) - 6.30
PD
max
= (4.71 x SW ) - 14.96
TLD(5.0–8.0:1)
TLD HB (5.0 – 8.0 : 1)
4.55 – 7.3
PD
min
=(4.52xSW)-0.01
PD
max
= (7.53 x SW ) - 0.29
PD
min
= (4.52 x SW ) - 0.39
PD
max
= (7.53 x SW ) - 11.42
The throw ratio of TLD (HB) lenses is slightly re
duced when used on FLM projectors. The reason of this
decrease is the larger active field of the SXGA+ DMD chip set used in the FLM projector.
62 R59770072 FLM SERIES 19/03/2007