Scanning beam displacement compensation control system

Details Scanning beam displacement compensation control system Scanning beam displacement compensation control system

1976-11-18

1980-05-20

McGraw, Vincent P.

Optics: measuring and testing

By monitoring of webs or thread

For flaws or imperfections

356400, 250563, 250235, G01N 2118, G01B 1126

Patent

active

042036720

ABSTRACT:
An electro-optical system for the repetitive repositioning of a cyclically moving beam of radiation to a preselected point in space, particularly as applied to electro-optical web inspection.

REFERENCES:
patent: 3198951 (1965-08-01), Lentze
patent: 3364813 (1968-01-01), McKinney
patent: 3646568 (1972-02-01), Woywood
patent: 3667846 (1972-06-01), Nater et al.
patent: 3715599 (1973-02-01), Marcy
patent: 3809806 (1974-05-01), Walker
patent: 3843890 (1974-10-01), Anthony et al.
patent: 3966329 (1976-06-01), Dickey
patent: 3975640 (1976-08-01), Boux et al.
J. Helmberger et al., Correction of Axial Deflection Errors in Rotating Mirror Systems, 12/75, pp. 249-251.

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