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2. General
Positioning the projector
FLOOR
SC
R
E
E
N
SC
R
E
E
N
PD
A
CD
SCREEN
SW
SW
SH
B
SH
B
CD
Image 2-8
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 35 cm 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 con
fi
guration. On-Axis con
fi
guration 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
fi
eld of view (F) as illustrated below. Within these shift ranges the projector and lens perform excellently.
Con
fi
guring the projector outside these shift ranges will result in a slight decline of image quality.
16
R59770180 FLM HD20 11/07/2008
Summary of Contents for FLM HD20
Page 1: ...FLM HD20 User guide R59770180 00 11 07 2008...
Page 4: ......
Page 14: ...1 Safety 10 R59770180 FLM HD20 11 07 2008...
Page 46: ...5 Connections 42 R59770180 FLM HD20 11 07 2008...
Page 58: ...6 Getting started 54 R59770180 FLM HD20 11 07 2008...
Page 62: ...7 Start up of the Adjustment Mode 58 R59770180 FLM HD20 11 07 2008...
Page 72: ...8 Input menu 68 R59770180 FLM HD20 11 07 2008...
Page 97: ...9 Image menu Image 9 105 Image 9 106 Image 9 107 R59770180 FLM HD20 11 07 2008 93...
Page 98: ...9 Image menu 94 R59770180 FLM HD20 11 07 2008...
Page 112: ...10 Layout menu Image 10 56 108 R59770180 FLM HD20 11 07 2008...
Page 116: ...11 Lamp menu Image 11 11 Image 11 12 Image 11 13 112 R59770180 FLM HD20 11 07 2008...
Page 156: ...13 Projector control 152 R59770180 FLM HD20 11 07 2008...
Page 190: ...17 Removal of the projector covers 186 R59770180 FLM HD20 11 07 2008...
Page 194: ...18 Dimensions 190 R59770180 FLM HD20 11 07 2008...
Page 204: ...20 Troubleshooting 200 R59770180 FLM HD20 11 07 2008...
Page 212: ...21 Specifications 208 R59770180 FLM HD20 11 07 2008...
Page 214: ...22 Order information 210 R59770180 FLM HD20 11 07 2008...