Barco DP K-19B Series User And Installation Manual page 71

Lp1
Lp2
DMD
Image 5–22 Scheimpflug principle
Scheimpflug 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.
Scheimpflug adjustment points
A a
1
4
D
Image 5–23 Scheimpflug adjustments
Indication on drawing
1, 2 and 3
4
A, B, C and D
a, b, c and d
1, 2 and 3 are adjustment points.
4 is a locking point and NOT used during Scheimpflug adjustment.
Required tools
• Allen key 3 mm
• Nut driver 13 mm
• Nut driver 10 mm
How to adjust
1. Project a green focus pattern. For a 4K projector, use the 4K test pattern. Otherwise, use the 2K test
pattern.
Fp1
Fp2
B b
2
3
c
d C
Function
Scheimpflug adjustment nuts
Locking nut
Set screws
lock nuts
DMD
Lp3
(Scheimpflug)
Lp4
R5905753 /17
Lenses & lens holder
Fp4
Fp3
DPxK-19B/23B/P 71