Lens Removal; Lens Shift, Zoom & Focus - Barco DP2K SLP Series Service Manual

Lens Holder
CAUTION: Never transport the projector with a Lens mounted in the Lens Holder. Always remove
the Lens before transporting the projector. Neglecting this can damage the Lens Holder and Prism.

16.5 Lens removal

How to remove a lens from the Lens Holder?
1. Support the lens with one hand while you unlock the lens holder by sliding the lock handle (reference 1
Image 16-10) towards the "unlocked" position as illustrated.
2. Gently pull the lens out of the lens holder, maintaining its coaxial direction.
Caution: Do not accidentally bump with the lens against the electronic boards inside the Lens Holder.
1
Image 16-10
It's recommended to place the Lens caps of the original Lens packaging, back on both sides of the
removed Lens to protect the optics of the Lens.
It's recommended to place the foam rubber of the original projector packaging, back into the Lens
opening to prevent intrusion of dust. Note that this foam rubber is packed in a plastic bag to prevent
the dust, emitted by the foam, from entering the projector.
16.6 Lens shift, zoom & focus
Motorized lens adjustment
The DP2K-SLP Series is equipped with a motorized lens shift and zoom & focus functionality.
Maximum shift range
The lens can be shifted with respect to the internal optics of the projector (DMD) which results 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 the shift range is limited as well.
All lenses have a shift range of 50% up, 50% down, 30% left, and 30% right. This range is valid for all throw
ratios. Within these shift ranges the projector and lens perform excellently. Configuring the projector outside
these shift ranges will result in a slight decline of image quality.
178 R5906848 /04 DP2K SLP Series