Dual collector optical flaw detector

Details Dual collector optical flaw detector Dual collector optical flaw detector

1984-05-14

1986-07-01

Kittle, John E.

Optics: measuring and testing

Inspection of flaws or impurities

Having predetermined light transmission regions

356239, 356431, 356446, 250563, 250572, G01N 2100

Patent

active

045976651

ABSTRACT:
A flaw detector for optically transmissive surfaces having a first light collector above the surface and a second light collector below the surface. A scanning light beam is directed into the first light collector through a beam entrance aperture and only light scattered from the surface is collected. Light specularly reflected from the surface exits the collector through the beam entrance aperture. Similarly, light passing through the surface enters the second collector, but the axial beam component is dumped through an opening in the second collector, while only diffracted light is collected. Preferably, two-stage light collectors are used with the first stage admitting the beam and generating a scattered or diffracted beam component, with the second stage admitting the scattered or diffracted beam component and integrating the component over a collection surface and sampling the integrated portion at a photoelectric detector. An electrical output signal from the detector may be displayed.

REFERENCES:
patent: 3663824 (1972-05-01), Blaisdell et al.
patent: 4243891 (1981-01-01), Dobler et al.
patent: 4360275 (1982-11-01), Louderback
patent: 4378159 (1983-03-01), Galbraith
patent: 4380032 (1983-05-01), Pfost

Affiliated with

Also associated with

Rating

Dual collector optical flaw detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual collector optical flaw detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual collector optical flaw detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1079370