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LRF 6042 Integrator Manual
4.4.3
Back-up solution
If no other optical equipment is available, an alternative method can be used to show the
path of the invisible laser light. Place a vertical and horizontal small pole (approx. 10 cm of
width) at about 200 meters distance. Start with one orientation (horizontal or vertical) and
measure until the laser hits the pole and gives the correct distance back. You can then
center the laser to this first orientation and then do the same with the second orientation.
With this method you can align the laser to any equipment, however its more time
consuming and not as precise as with a camera.
A quick and easy tool to make laser light visible are laser-viewing cards. These cards have a
photosensitive area, which emits a visible spot at the location of the invisible laser beam.
Vendors of such cards are:
Laser2000 (www.laser2000.de) (e.g. QTX-Q42-T)
Thor Labs (www.thorlabs.de) (e.g. VCR4)
4.5 Nitrogen flushing
To avoid condensation or humidity in the optical system, the module is recommended to be operated in a
'dry' atmosphere inside a housing. A ventilation hole is provided in the metal bench holding the optics, which
is covered by small pieces of yellow tape. With respect to dust, the unit is recommended to be handled
observing standard practices for sensitive optical components and assembly procedures.
NOTICE
The yellow pieces of tape stop dust penetrating the optical system and shall be removed just
before the host system is sealed and purged.
INTEGRATOR MANUAL LRF 6042 917657- A
Confidential & Proprietary SAFRAN VECTRONIX AG – All rights reserved
Figure 8: Bore sighting
Public: 02.2022
Page: 19/64
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