Three-dimensional reflectors for object attitude recognition

Details Three-dimensional reflectors for object attitude recognition Three-dimensional reflectors for object attitude recognition

1984-12-27

1987-02-10

LaRoche, Eugene R.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

350630, G01V 904

Patent

active

046424695

ABSTRACT:
A three-dimensional reflector for object attitude detection responds to illumination from a radiating source to produce a discrete array of light points aligned along a locus on the reflector. The array is characteristic of the reflector position with respect to the radiating source. The reflector has a corrugated surface formed with plural, parallel and spatially periodic, adjacent undulations, each having a crest and a trough. The undulations are arranged such that the locus runs through the reflector center of symmetry and the foot point of a perpendicular dropped by a detector for the array onto the surface. The foot point is a determinate point of the locus.

REFERENCES:
patent: 2961926 (1960-11-01), Hoffmeister
patent: 4173036 (1979-10-01), Ferguson

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