5. Lenses & lens holder
5.2
Lens selection
How to select the right Lens
1. Determine the required screen width (SW).
2. Determine the position of the projector in the projection room with regard to the screen and measure the projector-screen distance
PD.
Note:
To be precise, PD is the perpendicular distance between the front plate of the Lens Holder and the screen.
3. Use the lens formulas (see "Lens formulas", page 54) to
fi
nd the best corresponding PD with regard to the measured projector-
screen distance for the required screen width SW.
Tip:
Divide PD by SW to determine the approximate throw ratio. Choose a Lens, which captures the calculated throw ratio.
Use the lens formula of the chosen Lens to recalculate exactly.
SCREEN
PD
SW
Image 5-6
Projector distance
R59770491 DP2K-32B 30/04/2010
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Summary of Contents for DP2K--32B
Page 1: ...DP2K 32B Installation manual R59770491 00 30 04 2010...
Page 5: ...Projector Pb Hg Cd Cr6 PBB PBDE x o o o o o o o o o o o o o o o o o x o o o o o RoHS...
Page 6: ......
Page 9: ...1 Safety 1 SAFETY R59770491 DP2K 32B 30 04 2010 3...
Page 36: ...3 Physical installation 30 R59770491 DP2K 32B 30 04 2010...
Page 42: ...4 Lamp lamp house Image 4 6 Remove lamp house 36 R59770491 DP2K 32B 30 04 2010...
Page 52: ...4 Lamp lamp house 4 Reinstall the lamp cover of the projector 46 R59770491 DP2K 32B 30 04 2010...
Page 56: ...4 Lamp lamp house 50 R59770491 DP2K 32B 30 04 2010...
Page 84: ...7 Communicator Touch Panel 78 R59770491 DP2K 32B 30 04 2010...
Page 88: ...8 Starting up 82 R59770491 DP2K 32B 30 04 2010...
Page 96: ...9 Projector registration Image 9 9 Add new owner 90 R59770491 DP2K 32B 30 04 2010...
Page 116: ...10 Removal and installation of the projector covers 110 R59770491 DP2K 32B 30 04 2010...