Lens Formulas For Flm R20 - Barco FLM series Service Manual

4. About lenses
4.3

Lens formulas for FLM R20+

Formulas
Lens
TLD (0.8 : 1)
TLD HB (0.8 : 1)
TLD (1.2 : 1)
TLD+(1.2:1)
TLD (1.6 – 2.0 : 1)
TLD HB (1.6 – 2.0 : 1)
TLD (2.0 – 2.8 : 1)
TLD HB (2.0 – 2.8 : 1)
TLD (2.8 – 5.0 : 1)
TLD HB (2.8 – 5.0 : 1)
TLD (5.0 – 8.0 : 1)
TLD HB (5.0 – 8.0 : 1)
The throw ratio of TLD (HB) lenses is slightly reduced 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.
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Throw ratio for Metric formulas (meter)
FLM
0.75 PD = (0.77 x SW ) + 0.05
1.1 PD = (1.11 x SW ) - 0.01
1.2 PD= (1.23 x SW) + 0.11
1.45 – 1.85 PD
min
PD
max
1.82 – 2.55 PD
min
PD
max
2.55 – 4.55 PD
min
PD
max
4.55 – 7.3
PD
min
PD
max
= (1.47 x SW ) - 0.09
= (1.85 x SW ) - 0.13
= (1.85 x SW ) - 0.17
= (2.62 x SW ) - 0.24
= (2.58 x SW ) - 0.16
= (4.71 x SW ) - 0.38
= (4.52 x SW ) - 0.01
= (7.53 x SW ) - 0.29
Inch formulas (inch)
PD = (0.77 x SW ) + 1.97
PD = (1.11 x SW ) - 0.39
PD = (1.23 x SW) + 4.33
PD = (1.47 x SW ) - 3.54
min
PD = (1.85 x SW ) - 5.12
max
PD = (1.85 x SW ) - 6.69
min
PD = (2.62 x SW ) - 9.45
max
PD = (2.58 x SW ) - 6.30
min
PD = (4.71 x SW ) - 14.96
max
PD = (4.52 x SW ) - 0.39
min
PD = (7.53 x SW ) - 11.42
max
R59770072 FLM SERIES 19/03/2007