Method and apparatus for optically measuring the thickness of a

Details Method and apparatus for optically measuring the thickness of a Method and apparatus for optically measuring the thickness of a

1991-01-16

1993-05-04

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

65 311, 65 312, 356382, G01B 1106, C03B 37023, C03B 3707

Patent

active

052086453

ABSTRACT:
A method and an apparatus for measuring the thickness of a coating provided around a cylindrical object such as an optical fiber optically. The cylindrical object is irradiated by a measuring light and the light derived from the object is received by a photo-detector so that the intensity of the derived light is measured to thereby detect the thickness of the coating.

REFERENCES:
patent: 3017512 (1962-01-01), Wolbert
patent: 4952226 (1990-08-01), Frazee, Jr. et al.
patent: 4957526 (1990-09-01), Frazee, Jr. et al.

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