Apparatus for non-destructive inspection of blind holes

Details Apparatus for non-destructive inspection of blind holes Apparatus for non-destructive inspection of blind holes

1985-01-07

1987-03-03

Buczinski, Stephen C.

Optics: measuring and testing

By polarized light examination

Of surface reflection

356364, G01J 400

Patent

active

H00002305

ABSTRACT:
A miniaturized ellipsometric testing device having a laser for precisely impinging a prescribed beam of light upon a surface to be tested and a detector for capturing the reflected impinged beam only within prescribed limits. The value of the reflected impinged beam, which is transmissible to the detector, is used in determination of the validity of the surface tested; the miniaturized device is couplable to the laser light source and the detector by fiber optic cables.

REFERENCES:
patent: 3699350 (1972-10-01), Holdaway
patent: 3761186 (1973-09-01), Wason
patent: 4315688 (1982-02-01), Pryor
patent: 4381151 (1983-04-01), Smith

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