Optics: measuring and testing – By polarized light examination
Patent
1979-02-13
1981-08-11
Corbin, John K.
Optics: measuring and testing
By polarized light examination
250224, 350 66, 356237, 356240, G01N 2101
Patent
active
042831458
ABSTRACT:
In order to enable a laser beam to scan the complete inside surfaces of an empty bottle or the like, two mirrors oscillating about right angular axes are employed which successively reflect the laser beam. The oscillations of the two mirrors are correlated to impart an annular or spiral scanning motion to the laser beam. Subsequently passing through a converging lens, which is focused at the mouth of the bottle being tested, the laser beam enters the bottle for point-by-point scanning of its surfaces. The presence of a flaw in the bottle is sensed from the intensity of the laser beam that has penetrated, or has been reflected from, the bottle, as by an integrating sphere and a photoelectric detector mounted in position thereon. Various other embodiments of the invention and modifications are disclosed.
REFERENCES:
patent: 2265037 (1939-09-01), Gulliksen
patent: 2930898 (1960-03-01), Nuttall et al.
patent: 2984747 (1961-05-01), Walker
patent: 3437393 (1969-04-01), Baker et al.
patent: 3717772 (1973-02-01), Engman
patent: 3770969 (1973-11-01), Ansevin et al.
Hauge, P. S., "Method of Characterizing Optical Systems That Depolarized Light", IBM Tech. Disclosure Bulletin, vol. 20, No. 3, (Aug. 1977).
Arnold Bruce Y.
Corbin John K.
Kirin Beer Kabushiki Kaisha
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