Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1992-11-25
1995-02-14
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356237, G01N 2188
Patent
active
053897943
ABSTRACT:
A surface pit and mound detection and discrimination system including a device for scanning a beam of radiation over a surface, and a mechanism for detecting a local slope on the surface for differentiating between whether the beam of radiation is scanning a pit or a mound on the surface.
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Allen Nicholas C.
Broude Sergey V.
Chase Eric T.
Miller Pascal
Ormsby Jay L.
Allen Stephone B.
Nelms David C.
QC Optics, Inc.
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