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14. Lenses and Lens Holder
14.10 Scheimp
fl
ug adjustment
What has to be done ?
The lens holder has to be adjusted so that the “sharp focus plane” of the projected image falls together with the plane of the screen
(Fp1
→
Fp2). This is achieved by changing the distance between the DMD plane and the lens plane (Lp1
→
Lp2). The closer the lens
plane comes to the DMD plane the further the sharp focus plane will be. It can sometimes happen that you won’t be able to get a
complete focused image on the screen due to a tilt (or swing) of the lens plane with respect to the DMD plane. This is also known
as Scheimp
fl
ug’s law. To solve this the lens plane must be placed parallel with the DMD plane. This can be achieved by turning the
lens holder to remove the tilt (or swing) between lens plane and DMD plane (Lp3
→
Lp4).
SC
R
E
EN
DMD
Lp1
Lp2
Fp1
Fp2
SC
R
E
EN
DMD
Lp3
Lp4
Fp3
Fp4
(Scheimpflug)
Image 14-35
Scheimp
fl
ug principle
Scheimp
fl
ug principle
The "plane of sharp focus" can be changed so that any plane can be brought into sharp focus. When the DMD plane
and lens plane are parallel, the plane of sharp focus will also be parallel to these two planes. If, however, the lens
plane is tilted with respect to the DMD plane, the plane of sharp focus will also be tilted according to geometrical and
optical properties. The DMD plane, the principal lens plane and the sharp focus plane will intersect in a line below the
projector for downward lens tilt.
Scheimp
fl
ug adjustment points
4
1
2
3
d
D
c
C
A
a
B
b
Image 14-36
Scheimp
fl
ug adjustments
Indication on drawing
Function
4
Locking nut
1, 2 and 3
Scheimp
fl
ug adjustment nuts
A, B, C and D
Set screws
a, b, c and d
lock nuts
1, 2 and 3 are adjustment points.
4 is a locking point and NOT used during Scheimp
fl
ug adjustment.
230
R5905312 HDF W SERIES 24/01/2013
Summary of Contents for HDF W series
Page 1: ...HDF W series Service manual R5905312 01 24 01 2013 ...
Page 4: ......
Page 8: ...Table of contents 4 R5905312 HDF W SERIES 24 01 2013 ...
Page 12: ...1 Safety 8 R5905312 HDF W SERIES 24 01 2013 ...
Page 30: ...3 Preventative maintenance actions 26 R5905312 HDF W SERIES 24 01 2013 ...
Page 35: ...5 Troubleshooting 5 TROUBLESHOOTING R5905312 HDF W SERIES 24 01 2013 31 ...
Page 36: ...5 Troubleshooting 32 R5905312 HDF W SERIES 24 01 2013 ...
Page 110: ...6 Removal and installation of the projector covers 106 R5905312 HDF W SERIES 24 01 2013 ...
Page 111: ...7 Power Input 7 POWER INPUT R5905312 HDF W SERIES 24 01 2013 107 ...
Page 112: ...7 Power Input 108 R5905312 HDF W SERIES 24 01 2013 ...
Page 120: ...7 Power Input 116 R5905312 HDF W SERIES 24 01 2013 ...
Page 172: ...10 Card Cage 168 R5905312 HDF W SERIES 24 01 2013 ...
Page 182: ...11 Lamp Power Supply 178 R5905312 HDF W SERIES 24 01 2013 ...
Page 183: ...12 Start Pulse Generator 12 START PULSE GENERATOR R5905312 HDF W SERIES 24 01 2013 179 ...
Page 184: ...12 Start Pulse Generator 180 R5905312 HDF W SERIES 24 01 2013 ...
Page 192: ...12 Start Pulse Generator 188 R5905312 HDF W SERIES 24 01 2013 ...
Page 242: ...14 Lenses and Lens Holder 238 R5905312 HDF W SERIES 24 01 2013 ...
Page 270: ...15 Liquid cooling circuit 266 R5905312 HDF W SERIES 24 01 2013 ...
Page 274: ...16 Heat exchanger Image 16 5 Remove assembly 270 R5905312 HDF W SERIES 24 01 2013 ...
Page 280: ...16 Heat exchanger Image 16 13 276 R5905312 HDF W SERIES 24 01 2013 ...
Page 309: ...19 Board Diagnostic LED s 19 BOARD DIAGNOSTIC LED S R5905312 HDF W SERIES 24 01 2013 305 ...
Page 310: ...19 Board Diagnostic LED s 306 R5905312 HDF W SERIES 24 01 2013 ...
Page 328: ...19 Board Diagnostic LED s 324 R5905312 HDF W SERIES 24 01 2013 ...