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To control the placement of reflected light beam 1, which may be a laser beam, on target 2, mirror 3 is adjustable in two different ways.
English (United States)
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Adjustable Beam Reflector
To control the placement of reflected light beam 1, which may be a laser
beam, on target 2, mirror 3 is adjustable in two different ways.
As shown in Fig. 1, mirror 3 is held against adjusting screws 4 and 5 and
pivot point 6 by retaining spring 7. Spring 7 is fastened to mount 8 by screw 9.
Adjusting screws 4 and 5 and pivot point 6 are positioned in an L pattern, thus
giving each adjusting screw independent control over beam 1. Adjusting screw 4
is used to rotate beam 1 in a first direction, and adjusting screw 5 is used to
rotate the beam in a second direction perpendicular to the first direction. Thermal
changes will move mirror 3 slightly, but will not rotate it.
As shown in Fig. 2, the position of beam 1 is changed by sliding mount 8
along plane 10 of base 11. As plane 10 has a different inclination angle versus
target 2 than mirror 3, in other words, angle Alpha is different from angle Beta in
Fig. 2, the position of beam 1 on target 2 changes only a fraction of the
displacement of mount 8 along plane 10. Furthermore, the displacement of
mount 8 does not change the tilt orientation of mirror 3.
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