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R5906113 /08
UDX
28
Positioning the projector
FLOOR
S
C
R
E
E
N
S
C
R
E
E
N
PD
A
C
D
SCREEN
SW
S
W
S
H
B
S
H
B
C
D
Image 2-9: Positioning the projector
The projector should be installed at right angles (horizontally and vertically) to the screen at a distance PD.
Note the distance (A) between lens centre and table surface is slightly variable. This distance (A) is nominal
223 mm in case all feet are turned in completely and the vertical lens shift is set to zero (0).
On axis / off axis projection
The position of the projector with reference to the screen may also be different depending on the installation.
Basically the projector can be positioned in On-Axis or Off-Axis configuration. On-Axis configuration means
that the projector is positioned so as to have the centre of the lens coinciding with the centre of the screen.
Off-Axis projection is obtained by shifting the lens up, down, left or right. Several parameters can be calculated
determining the position in any installation.
Formula to calculate the distance CD for On-Axis projection:
CD = SH/2 + B - A
Shift range
The lens can be shifted with respect to the DMD (P) which result in a shifted image on the screen (Off-Axis). A
100% shift means that the centre point of the projected image is shifted by half the screen size. In other words,
the centre point of the projected image falls together with the outline of the image in an On-Axis projection.
Due to mechanical and optical limitations it's recommended to keep the shift values within the field of view (F)
as illustrated below. Within these shift ranges the projector and lens perform excellently. Configuring the
projector outside these shift ranges will result in a slight decline of image quality.
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...