Optical source position and direction sensor

Details Optical source position and direction sensor Optical source position and direction sensor

1995-12-12

1997-01-07

Evans, F. L.

Optics: measuring and testing

Lamp beam direction or pattern

356375, 356400, G01B 1100

Patent

active

055922856

ABSTRACT:
A sensor for determining the lateral position and direction of an optical source having an arbitrary spatial intensity distribution. The sensor includes two substantially separated apertures which establish the extent of an optical radiation ray bundle which includes rays from the optical source. The power centroid of this optical radiation ray bundle is measured in the plane of the first aperture and in the plane of the second aperture. Optical source position and direction are computed from these two measurements.

REFERENCES:
patent: 4037959 (1977-07-01), Bumgardner
patent: 4786178 (1988-11-01), Teach
patent: 4964735 (1990-10-01), Sasnett et al.
Melles Griot, Optical Beam Position Measurement System, 2152 May 1992, p. 2 .

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