Optics: measuring and testing – Fiducial instruments – Artificial reference
Patent
1976-02-18
1977-04-05
Corbin, John K.
Optics: measuring and testing
Fiducial instruments
Artificial reference
33230, 350 16, G01C 1514
Patent
active
040159051
ABSTRACT:
An improved target sighting device of the type particularly suited for use on moving vehicles, such as military aircraft, and in which a vertically-disposed C-shaped elevation gimbal is supported for rotary movement about an elevation axis at the center of the gimbal to enable a vertically extending mirror on the gimbal to be aimed toward a target along a line of sight at one side of the gimbal, for reflection of target information along such axis and through the open end of the gimbal to a fixed optical pickup assembly. Improvement resides in the support of the open end of the gimbal by a ring bearing encircled by an annular flex pivot assembly that limits the extent of rotary aim-influencing vibration that can be transmitted from the exterior of the device to the gimbal and mirror circumferentially through the ring bearing by friction.
REFERENCES:
patent: 3471931 (1969-10-01), Bezu
patent: 3518016 (1970-06-01), Burdin et al.
patent: 3522993 (1970-08-01), Gabriet
Corbin John K.
Koren Matthew W.
Straitiff D. F.
Westinghouse Electric Corporation
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