Surface position sensor

Details Surface position sensor Surface position sensor

1984-11-28

1990-06-26

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With light attenuation

356 1, G01B 1102, G01B 1114

Patent

active

049366769

ABSTRACT:
A surface position sensor utilizing a beam of energy reflected from the surface through an optical receiver to a detector wherein an energy blocking member having a receiver aperture permits only energy substantially parallel to the optic axis of the optical receiver to pass through to the detector.

REFERENCES:
patent: 4558949 (1985-12-01), Uehara et al.
"Position Sensing Photodetectors", United Detector Technology.
"Precision Non-Contact Measurement is Simpler than you Think", Selcom.
"Precimeter-non-contact precision probe", Remplir.
"Triangulation Distance Measurement with Optoelectronics", Quality Progress, Mar. 1983.
SPIE vol. 129, Effective Utilization of Optics in Quality Assurance (1977), "Position Sensing With Lateral Effect Photodiodes", B. O. Kelly.
Bodlaj, V. "Lambda--ein Lasermessverfahren", Messen Prufer Automatisiera (3-1985) pp. 118-126.
"Optical Alignment Apparatus", Smith et al, IBM Technical Disclosure Bulletin, vol. 18 #9, 499-500, 7/1975.

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