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R5906113 /08
UDX
51
Image 5-16
5.5 Scheimpflug adjustment
What is Scheimpflug?
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 Scheimpflug'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).
Image 5-17: 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.
Summary of Contents for UDX
Page 1: ...ENABLING BRIGHT OUTCOMES Installation Manual UDX...
Page 8: ...R5906113 08 UDX 8...
Page 32: ...R5906113 08 UDX 32 Installation preparations...
Page 40: ...R5906113 08 UDX 40 Pulse Remote Control Unit...
Page 86: ...R5906113 08 UDX 86 WiFi GSM Module...
Page 92: ...R5906113 08 UDX 92 Laser range finder camera kit...
Page 102: ...R5906113 08 UDX 102 Getting Started...
Page 130: ...R5906113 08 UDX 130 Specifications...
Page 131: ...131 R5906113 08 UDX Stacking UDX projectors B...
Page 134: ...R5906113 08 UDX 134 Stacking UDX projectors...
Page 144: ...R5906113 08 UDX 144 Overview video timings for video interfaces...