Method for inspecting object defection by light beam

Details Method for inspecting object defection by light beam Method for inspecting object defection by light beam

1977-04-04

1978-06-27

McGraw, Vincent P.

Optics: measuring and testing

Inspection of flaws or impurities

Having predetermined light transmission regions

250563, 250572, 356200, 356210, G01N 2132, G01N 2148

Patent

active

040971600

ABSTRACT:
A narrow beam from a laser source-like light beam is projected on an object, the light scattered from the projected spot of the object is detected by light detecters at a plural number of the detecting positions. The distribution of the scattered light is detected by comparing the values of the densities of the scattered lights at the plural number of the detecting positions among each other in such a manner that it is determined from the distribution of the scattered light whether there is a defect on the projected spot or not.

REFERENCES:
patent: 3280692 (1966-10-01), Milnes et al.
patent: 3834822 (1974-09-01), Stapleton et al.

Affiliated with

Also associated with

Rating

Method for inspecting object defection by light beam does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for inspecting object defection by light beam, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for inspecting object defection by light beam will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2301663