Scheimpflug Adjustment - Barco HDX-4K20 FLEX User Manual

Lenses & Lens selection
Image 5–20
Image 5–21 Example using the top carrying
handle

5.6 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 Scheimpflug'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).
56 R5906070 /16 HDX 4K