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10. Scheimpflug
10.1 Scheimp
fl
ug introduction
What is Scheimp
fl
ug?
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 occur 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 10-1
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
The front plate of the Lens holder is equipped with four bronze (Scheimp
fl
ug) nuts and four set screws with lock nut. These screws
and nuts are used for Scheimp
fl
ug adjustment.
1
11
14
4
21
24
13
3
23
2
12
22
Image 10-2
1
Scheimp
fl
ug adjustment nuts No1: In
fl
uences the sharp focus plane in the lower left corner of the projected image.
2
Scheimp
fl
ug adjustment nuts No2: In
fl
uences the sharp focus plane in the lower right corner of the projected image.
3
Scheimp
fl
ug adjustment nuts No3: In
fl
uences the sharp focus plane in the upper right corner of the projected image.
4
Scheimp
fl
ug nut No 4: without adjustment functionality.
11
Set screw for nut No1.
12
Set screw for nut No2.
13
Set screw for nut No3.
14
Set screw for nut No4.
21
Lock nut.
22
Lock nut.
23
Lock nut.
24
Lock nut.
Reference 1, 2 and 3 are adjustment points. Reference 4 is a locking point and NOT used during Scheimp
fl
ug
adjustment.
94
R5906847 DP2K SLP SERIES 02/06/2017
Summary of Contents for DP2K SLP Series
Page 1: ...DP2K SLP Series User and Installation manual R5906847 00 02 06 2017 ...
Page 4: ......
Page 15: ...1 Safety PR RESTRICTED AREA RESTRICTED AREA Image 1 2 R5906847 DP2K SLP SERIES 02 06 2017 11 ...
Page 18: ...1 Safety 14 R5906847 DP2K SLP SERIES 02 06 2017 ...
Page 44: ...5 Lenses Lens selection 40 R5906847 DP2K SLP SERIES 02 06 2017 ...
Page 86: ...7 ICMP 82 R5906847 DP2K SLP SERIES 02 06 2017 ...
Page 96: ...9 Starting up 92 R5906847 DP2K SLP SERIES 02 06 2017 ...
Page 108: ...10 Scheimpflug 104 R5906847 DP2K SLP SERIES 02 06 2017 ...
Page 116: ...11 Convergence 112 R5906847 DP2K SLP SERIES 02 06 2017 ...
Page 124: ...13 Preventative maintenance actions 120 R5906847 DP2K SLP SERIES 02 06 2017 ...
Page 162: ...B Pin configurations 158 R5906847 DP2K SLP SERIES 02 06 2017 ...
Page 172: ...C Environmental information 168 R5906847 DP2K SLP SERIES 02 06 2017 ...