Optics: measuring and testing – Angle measuring or angular axial alignment – With photodetection remote from measured angle
Patent
1975-01-15
1976-11-02
Corbin, John K.
Optics: measuring and testing
Angle measuring or angular axial alignment
With photodetection remote from measured angle
356167, G01N 2130
Patent
active
039893863
ABSTRACT:
There is disclosed an automatic apparatus for sequentially inspecting a plurality of selected areas of an apertured material. The apparatus comprises a light determination means including an established light source and a positioned light detection means, a movable retention means for retaining the apertured material, and a control means for actuating the light determination means and the movable retention means whereby the selected areas of the apertured material will be sequentially positioned between the light source and the light detection means whereupon light is projected through each of said areas. The light passing through the areas is detected by said light detection means. A method for inspecting is also disclosed.
REFERENCES:
patent: 3361029 (1968-01-01), Russell et al.
patent: 3636362 (1972-01-01), Beeman et al.
patent: 3645626 (1972-02-01), Druschel
patent: 3744905 (1973-07-01), Smith
patent: 3883251 (1975-05-01), Helava
Castle Donald R.
Corbin John K.
Fraley Lawrence R.
GTE Sylvania Incorporated
O'Malley Norman J.
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