Introduction - Barco DP2K-12C Service Manual

8. Light processor assembly
8.1

Introduction

Light Processor assembly
The light processor assembly has three major sub assemblies, namely: the Light Processor Unit (reference 1) with dowser (reference
2) and the Light Pipe assembly (reference 3).
Image 8-1
Light processor assembly
Light Pipe
The Light Pipe transforms the light emitted by the lamp into a homogeneous light beam and focuses this beam precisely on the active
surface of the DMD's. The Light Pipe contains the Integration Rod at the Light Pipe entrance, the Light Pipe focus and rotation knobs
which matches the size of the light beam with the size of the DMD's, the Folding Mirror which folding up the light path of the projector
to make the projector more compact, and the Light Sensor Module which ensures a Constant Light Output (CLO) of the projector.
Furthermore, the Light Pipe has a Notch filter on the exit which applies some small color corrections on the light coming out of the
Light Pipe.
3
2
1
Image 8-2
Light pipe assembly
1 Light sensor unit
2 Fold mirror cover
3 Notch filter adjustment
4 Rod entrance
5 Rod lock nut
6 Rod focus knob
7 Rod focus lever
8 Notch filter
9 Fold mirror
Light Processor
The Light Processor is the heart of the projector. The prism of the Light Processor splits up the homogeneous white light coming
from the Light Pipe into red, green and blue light. The video information on the three DMD's is integrated with these red green and
136
2
7
6
5
4
1
8
9
R5905043 DP2K-12C/11CX 19/02/2018
3