Barco HDX 4K, Руководство пользователя

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2. Installation preparations
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.
U
+120%
-20%
-50% +50%
D
L R
P
F
U
D
SIDE VIEW
P
F
+120%
-20%
TOP VIEW
P
F
L
R
-50%
+50%
Image 2-9
Vertical and horizontal shift range
P DMD.
F Field of view.
It is mechanical possible to shift outside the recommended fi eld of view, but it will result in a decline of image
quality depending on the used lens and the zoom position of the used lens. Furthermore, shifting too much
in both directions will result in a blurred image corner.
Best image quality is projected in the On-Axis con fi guration.
Horizontal and vertical projector tilt ranges
The projector can be rotated and mounted at any vertical angle. In other words, you can tilt the lens side of the projector as much
as desired for your application.
Side to side tilt, however, must not exceed ±15°. This limit ensures that the lamp in the projector operates properly and safely. More
tilting within area C is allowed but lamp
fl icker can happen.
MAX
MAX
15°
15°
360°
15°
15°
A
B
C
A
Image 2-10
A
Tilting allowed without problems
B No tilting allowed in this area
R5906070 HDX 4K 23/09/2016 17