Barco Athena, Installation Manual

Page: 103 / 184

R5906790 /04 Athena 103
1
11
14
4
21
24
13
3
23
2
12
22
Image 11-2
1 Scheimpflug adjustment nuts No1: Influences
the sharp focus plane in the lower left corner of
the projected image.
2 Scheimpflug adjustment nuts No2: Influences
the sharp focus plane in the lower right corner of
the projected image.
3 Scheimpflug adjustment nuts No3: Influences
the sharp focus plane in the upper right corner of
the projected image.
4 Scheimpflug nut No 4: without adjustment
functionality.
11 Set screw for nut No1.
12 Set screw for nut No2.
13 Set screw for nut No3.
14 Set screw for nut No4.
21 Lock nut.
22 Lock nut.
23 Lock nut.
24 Lock nut.
Reference 1, 2 and 3 are adjustment points. Reference 4 is a locking point and NOT used during
Scheimpflug adjustment.
When to apply Scheimpflug?
Only apply a Scheimpflug correction in case the overall focus of the projected image is not equally sharp (can
be caused if the projector is
NOT in parallel with the screen or a previous misaligned Scheimpflug) . Take into
account that the consequence of applying Scheimpflug correction upon a screen not in parallel with the
projector is that the projected image differs from the rectangle shaped image. In other words
“ distortion ” of
the projected image occurs. Masking will be required to solve the distortion.
The disadvantage of Masking is loss of content. Therefore it is strongly recommended to place the projector
in parallel with the projection screen and use the SHIFT functionality of the Lens Holder to match the
projected image with the projection screen. In case the SHIFT range is not sufficient then the projector can be
tilted and Scheimpflug can be applied.
11.2 Scheimpflug adjustment
Required tools
• 3mm Allen wrench.
• 13mm nut driver.
• 10mm nut driver.
Preparation steps:
1. Ensure that the throw ratio of the installed lens matches the requirements of the application (projection
distance and screen size).
2. Ensure that the correct lens parameters are activated. (See user guide of the “ Communicator ” chapter
Installation > Advanced > Lens parameters )
Scheimpflug