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Preparations
Remove the screws of the front panel. Remove the panel and unplug the LED connector on
the left power supply section of the Midget. Be sure to work in a dust-free ambient, so the
optical section is not contaminated. In any case, avoid touching the output window. During
aligning process, also make sure not to touch any optical surface with sour fingers. Inside the
Midget, high quality optical components are used, and not all optical surfaces can be cleaned
the usual way. Most of the mirrors are very high reflective protected mirrors, cleaning is not
necessary. If, in any case, the surface is dirty, the mirrors can be carefully cleaned with lens
paper and window cleaner.
All Midget RGB models:
should only be done by an experienced service technician. All color lines must be parallel
from the last dichroic filter on the red laser to a distance of minimum 10m projection size.
The green laser beam is your reference of the optical mixing system. Adjust the green beam
with the mirror mount. Make sure, the beam is parallel to the base, and hits the galvo mirror
properly.
Now adjust the blue laser line in the same procedure. Align both beams properly on top of
each other, parallel onto the galvo mirror mount, and, at the same time, parallel in far
distance.
Use the same procedure on the red laser.
Finally, all single beams and colors should match on the galvo mirrors and also after a
distance of 10-20m. Once the system is aligned, it should not misalign again. During
alignment procedure, please check all mirror mounts for proper function and cleaness.
C by MediaLas Electronics
www.medialas.com
Basically there are three
laser devices for red, green
and blue color. Depending
on output power and setup
of the Midget projector,
different laser modules are
used, which are coupled and
aligned to one single beam.
But in any case, each single
color is mixed to one beam,
before it enters the main
optical mixing section.
Procedure is quite easy, but
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