Orientation dependent reflector

Details Orientation dependent reflector Orientation dependent reflector

1996-08-15

1999-08-10

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

35613903, G01B 1126

Patent

active

059367237

ABSTRACT:
An orientation dependent reflector for reflecting light from a light source to facilitate the determination of the angular orientation of an object, the reflector comprising a transparent substrate having front and back surfaces, a plurality of retro reflecting patches coupled to the back surface, and an opaque film layer coupled to the front surface having a plurality of openings therein to facilitate passing light through the transparent substrate to reflect off of the retro reflecting patches in correspondence to angular orientation such that the angular orientation of the object is determined from the centroid of reflection.

REFERENCES:
patent: 3915575 (1975-10-01), Sick
patent: 4227807 (1980-10-01), Pond et al.
patent: 4583852 (1986-04-01), Cassidy et al.
patent: 4732472 (1988-03-01), Konig et al.
Pending U.S. Patent Application, Serial No. 08/698,357, filed Aug. 15, 1996, Brian S. R. Armstrong and Karl B. Schmidt, "Apparatus and Method for Determining the Angular Orientation of an Object".

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