![background image](http://html1.mh-extra.com/html/barco/prometheus-iii/prometheus-iii_installation-manual_4205234075.webp)
R5906897 /02
Prometheus III
75
6.7 Scheimpflug 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 Sheimpflug'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 6-22: 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.
Scheimpflug adjustment points
4
1
2
3
d
D
c
C
A
a
B
b
Image 6-23: Scheimpflug adjustments
Indication on drawing
Function
1, 2 and 3
Scheimpflug adjustment nuts
4
Locking nut
A, B, C and D
Set screws
a, b, c and d
lock nuts
1, 2 and 3 are adjustment points.
Содержание Prometheus III
Страница 1: ...ENABLING BRIGHT OUTCOMES Installation manual Prometheus III...
Страница 8: ...R5906897 02 Prometheus III 8...
Страница 32: ...R5906897 02 Prometheus III 32 Installation process...
Страница 62: ...R5906897 02 Prometheus III 62 Physical installation stand alone cooler...
Страница 80: ...R5906897 02 Prometheus III 80 Lenses lens holder...
Страница 98: ...R5906897 02 Prometheus III 98 Input communication...
Страница 100: ...R5906897 02 Prometheus III 100 Installing a HDD into the ICMP ICMP...
Страница 132: ...R5906897 02 Prometheus III 132 Communicator Touch Panel...
Страница 148: ...R5906897 02 Prometheus III 148 Removal and installation of the projector covers...
Страница 152: ...R5906897 02 Prometheus III 152 Preventative maintenance actions...
Страница 170: ...R5906897 02 Prometheus III 170 Convergence...
Страница 176: ...R5906897 02 Prometheus III 176 Color calibration...
Страница 199: ...R5906897 02 Prometheus III 199 Environmental Information...