Measuring apparatus of mirror surface

Details Measuring apparatus of mirror surface Measuring apparatus of mirror surface

1992-01-21

1994-01-04

Evans, F. L.

Optics: measuring and testing

Angle measuring or angular axial alignment

Alignment of axes nominally coaxial

356154, 356373, G01B 1100

Patent

active

052764974

ABSTRACT:
An apparatus for measuring the deviation from a specific position of a mirror surface, includes an auto collimating system in which a point light source is located at a reference point on a reflecting surface of the mirror surface located at a predetermined correct position. A light emitter emits detecting light onto the point light source from an incident optical axis inclined with respect to a normal of the mirror surface. A position detector measures the deviation of the detecting light reflected by the mirror surface and reciprocally transmitted through the auto collimating system and again reflected by the mirror surface.

REFERENCES:
patent: 3628869 (1971-12-01), Clay et al.
patent: 3915575 (1975-10-01), Sick
patent: 4868377 (1989-09-01), Nishikawa

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