Edge detector in optical measuring instrument

Details Edge detector in optical measuring instrument Edge detector in optical measuring instrument

1983-04-04

1985-12-10

Rosenberger, R. A.

Optics: measuring and testing

By polarized light examination

With light attenuation

356375, 356384, G01N 2130

Patent

active

045576025

ABSTRACT:
An edge detector in an optical measuring instrument, for detecting a transmitted light or reflected light to directly or indirectly measure dimensions of an object being measured, comprising:

REFERENCES:
patent: 3467473 (1969-09-01), Preston
patent: 3697761 (1972-10-01), Kamachi
patent: 4142105 (1979-02-01), Erdmann

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