Optics: measuring and testing – Angle measuring or angular axial alignment – With photodetection remote from measured angle
Patent
1990-02-26
1992-02-18
Hellner, Mark
Optics: measuring and testing
Angle measuring or angular axial alignment
With photodetection remote from measured angle
356153, 244 316, 244 313, G01C 1514
Patent
active
050888188
ABSTRACT:
An optical aiming device comprising optical elements providing a primary optical path by which a field of view is presented to an observer and a secondary optical assembly providing two stabilized secondary optical paths for projecting a stabilized aiming mark into the field of view and for projecting from the device a stabilized optical aiming beam. The secondary optical assembly comprises a reflector by which the secondary optical paths are stabilized, the reflector being mounted in a gimbal for rotation about a first axis and the gimbal being mounted for rotation about a second axis perpendicular to the first axis, and the assembly further comprising stabilizing actuator means operative to move the reflector and the gimbal about the two axes of rotation to maintain the reflector stabilized against movement within predetermined limits of the device about the two axes.
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Hellner Mark
Short Brothers PLC
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