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Installation Guidelines
Lenses
Which Lens has to be selected.
1Determine the required screen width.
2Determine the approximate position of the projector in the projection room with regard to the screen and measure the
3Use the lens formulas to find the best corresponding PD with regard to the measured
The desired lens is determined (the order number is given in the tabel).
Available lenses
QLD lenses : |
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Name Lens | Lenght mm (inch) | Diameter mm (inch) Weight kg (lbs) | Order number |
QLD | 329 | 183 | R9840130 |
QLD | 335.5 | 160 | R9840140 |
QLD | 285.7 | 155 | R9840150 |
QLD | 383 | 144.5 | R9840160 |
QLD |
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| R9840430 |
QLD (1.2:1) | 447 | 183 | R9840120 |
Remark : When using these lenses with the ELM G10, the throw ratio is these for the ELM R12 x 1.25.
LD lenses : |
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Name Lens | Lenght mm (inch) Diameter mm (inch) Weight kg (lbs) | Order number |
LD (0.8:1) |
| R9840420 |
LD |
| R9840090 |
LD |
| R9840270 |
LD |
| R9840280 |
Remark : These lenses can only be used in combination with an adaptor ring.
Lens formulas to calculate the projector distance
For QLD lenses : |
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| Metric formulas (meter) | |
QLD | Min : | PD = 1.53 x SW - 0.05 |
| Max : | PD = 2.05 x SW - 0.07 |
QLD | Min : | PD = 2.04 x SW - 0 |
| Max : | PD = 2.51 x SW - 0.02 |
QLD | Min : | PD = 2.50 x SW - 0.12 |
| Max : | PD = 4.01 x SW - 0.20 |
QLD | Min : | PD = 3.99 x SW - 0.05 |
| Max : | PD = 7.04 x SW - 0.23 |
QLD | Min : | PD = 5.64 x SW ± 0.15 |
| Max : | PD = 12.0 x SW ± 0.15 |
QLD (1.2:1) |
| PD = 1.24 x SW - 0.08 |
For LD lenses : |
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| Metric formulas (meter) | |
LD (0.8:1) |
| PD = 0.64 x SW - 0.03 |
LD | Min : | PD = 1.19 x SW - 0.01 |
| Max : | PD = 2.01 x SW - 0.05 |
LD | Min : | PD = 1.97 x SW - 0.01 |
| Max : | PD = 3.17 x SW - 0.05 |
LD | Min : | PD = 3.16 x SW - 0.10 |
| Max : | PD = 5.56 x SW - 0.17 |
Inch formulas (inch)
Min : PD = 1.53 x SW - 1.97
Max : PD = 2.05 x SW - 2.76
Min : PD = 2.04 x SW - 0
Max : PD = 2.51 x SW - 0.79
Min : PD = 2.50 x SW - 4.72
Max : PD = 4.01 x SW - 7.87
Min : PD = 3.99 x SW - 1.97
Max : PD = 7.04 x SW - 9.06
Min : PD = 5.64 x SW ± 5.9
Max : PD = 12.0 x SW ± 5.9 PD = 1.24 x SW - 3.14
Inch formulas (inch)
PD = 0.64 x SW - 1.18
Min : PD = 1.19 x SW - 0.39
Max : PD = 2.01 x SW - 1.97
Min : PD = 1.97 x SW - 0.39
Max : PD = 3.17 x SW - 1.97
Min : PD = 3.16 x SW - 3.93
Max : PD = 5.56 x SW - 6.69
Note : Lens program to calculate the projector distance is available on the BARCO webside : http://www.barco.com/projecti/cusserv/index.htm
The lens program can also be ordered on floppy or CD.
5976072 BARCO ELM R12 17102000 |
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