Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1989-06-09
1992-02-25
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
359872, A61B 314, G02B 508
Patent
active
050907972
ABSTRACT:
It is sometimes required to track randomly moving objects with precision and high speed. This inventioin pertains to a mirro rotation assembly that provides precise, high-speed pitch and yaw tracking by rotating a low-moment-of-inertia mirror rather than rotating a heavier double gimballed mirror assembly or the camera-lens assembly itself. By pivoting the mirror on a single bearing point and controlling the mirror surface pitch and yaw by driving two mirror tie points along circumferential paths around the bearing point, a low moment of inertia is obtained. The low moment of inertia together with mirror velocity rather than position control permits higher speed tracking while maintaining the required precision. The velocity control strategy minimizes image blur resulting from unpredicted object motions.
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Cleveland Dixon
Cleveland James H.
Collier Richard W.
Forsythe Jeffrey A.
Norloff Peter L.
Bovernick Rodney B.
LC Technologies Inc.
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