Method and apparatus for determining physical characteristics of

Details Method and apparatus for determining physical characteristics of Method and apparatus for determining physical characteristics of

1979-02-27

1982-04-27

Corbin, John K.

Optics: measuring and testing

Of light reflection

250224, 250572, 350293, 356237, G01N 2155, G02B 510

Patent

active

043268080

ABSTRACT:
A method and apparatus is disclosed for determining physical characteristics, such as defects, in the outer surface of an elongate object, wherein the object to be inspected passes through an aperture of a mirror surface which is a conical surface of revolution. Light directed onto the mirror surface in an axial direction is reflected by the object surface, imaged, and analyzed to determine a physical characteristic of the object surface.

REFERENCES:
patent: 1640966 (1927-08-01), Seguin et al.
patent: 3148582 (1964-09-01), Coakley
patent: 4124302 (1978-11-01), Kuzmin

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