Optical device for the remote measuring of variations in the ori

Details Optical device for the remote measuring of variations in the ori Optical device for the remote measuring of variations in the ori

1987-02-18

1998-08-11

Hellner, Mark

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

G01B 1126

Patent

active

057934843

ABSTRACT:
A reflector for use in the remote measuring of variations in the orientation of an object with respect to a reference support. The reflector comprising at least one dihedron having reflecting surfaces at an angle which differs from 90 degrees by a small angle(beta), the intersection line of the surfaces being perpendicular to the direction of measurement.

REFERENCES:
patent: 3994588 (1976-11-01), Marx
patent: 4315690 (1982-02-01), Trocellier et al.
patent: 4425043 (1984-01-01), van Rosmalen
patent: 4470664 (1984-09-01), Shirasawa
patent: 4494870 (1985-01-01), Hentschel et al.
patent: 4498768 (1985-02-01), Holl
patent: 4562769 (1986-01-01), Heynau et al.
patent: 4576480 (1986-03-01), Travis
patent: 4582428 (1986-04-01), Holl et al.

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