![background image](http://html1.mh-extra.com/html/barco/dp2k-12c/dp2k-12c_installation-manual_3917263048.webp)
5. Lenses & lens holder
5.5
Lens shift, zoom & focus
Motorized lens adjustment
The DP2K C-series projector is equipped with a motorized lens shift functionality and a motorized zoom & focus functionality.
Maximum shift range
The lens can be shifted with respect to the DMD 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 an optical limitations the shift range is limited as
well.
All DC2K lenses have a shift range of 50% up/down and 15% left/right. This range is valid for all throw ratios. Only the 0.98" DC2K
Zoom (1.95–3.2 : 1) lenses with item numbers
R9855934
and
R98559341
have a larger shift range of 128% up/down.
How to shift the lens of the DP2K C-series projector?
1. Use the
up and down
arrow keys on the local keypad to shift the lens
vertically
and use the
left and right
arrow keys on the
local keypad to shift the lens
horizontally
.
Image 5-15
How to zoom in or out?
1. Is the projector equipped with a motorized zoom & focus?
If yes, use the “+” and “-”
zoom keys
on the local keypad to zoom in or out.
Image 5-16
If no, use the
zoom barrel
on the lens to zoom in or out.
How to focus?
1. Is the projector equipped with a motorized zoom & focus?
If yes, use the “+” and “-”
focus keys
on the local keypad to focus the image on the screen.
Image 5-17
If no, use the
focus barrel
on the lens to focus the image on the screen.
5.6
Scheimp
fl
ug adjustment
What has to be done ?
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 sometimes happen 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 Sheimp
fl
ug’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).
42
R5905050 DP2K C-SERIES 10/07/2012
Содержание DP2K-12C
Страница 1: ...DP2K C series Installation manual For DP2K 12C DP2K 15C DP2K 20C R5905050 04 10 07 2012...
Страница 6: ......
Страница 64: ...8 Starting up 58 R5905050 DP2K C SERIES 10 07 2012...
Страница 92: ...11 Maintenance 86 R5905050 DP2K C SERIES 10 07 2012...
Страница 104: ...13 Specifications 98 R5905050 DP2K C SERIES 10 07 2012...
Страница 108: ...A Pin configurations 102 R5905050 DP2K C SERIES 10 07 2012...