Method and apparatus for adjusting the alignment of a sighting d

Details Method and apparatus for adjusting the alignment of a sighting d Method and apparatus for adjusting the alignment of a sighting d

1987-12-01

1992-05-05

Rosenberger, Richard A.

Optics: measuring and testing

Angle measuring or angular axial alignment

356153, G01B 1127

Patent

active

051102099

ABSTRACT:
A method of adjusting the alignment of a sighting device (5) and a member (4) coupled therewith, said member being pivotable in at least one plane about a first pivot axis (3), and at least part (7) of said sighting device (5) being pivotable about a second pivot axis (6). On the pivotable member an apparatus is mounted which provides a parallel beam of radiation shining directly or indirectly on to the pivotable part (7) of the sighting device (5), and being productive of a point image at the viewing end of the sighting device. The pivotable member is moved into a plurality of different angular positions relative to the first pivot axis (3), and, if during these movements the point image is moved beyond a pre-determined tolerance range, the coupling (8) between the pivotable member and the sighting device is adjusted. The apparatus comprises a frame which is provided with means (40,41,50,51) for fastening the apparatus to the pivotable member, and carrying a source of radiation which, either directly or via an optical apparatus, such as a collimator (30,80) shines a parallel beam of radiation on to the sighting device.

REFERENCES:
patent: 3684383 (1972-08-01), Johansson
patent: 3734627 (1973-05-01), Edwards
patent: 3908282 (1975-09-01), Steffan
patent: 4142799 (1979-03-01), Barton
patent: 4191471 (1980-03-01), Courten et al.

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