Optics: measuring and testing – Inspection of flaws or impurities – Textile inspection
Patent
1976-02-23
1977-11-08
Corbin, John K.
Optics: measuring and testing
Inspection of flaws or impurities
Textile inspection
350 6, 350 7, 356200, G01N 2116
Patent
active
040573516
ABSTRACT:
A system is provided for scanning a laser beam across the width of fabric material to be inspected. A scanning mirror receives coherent light from the beam and is mounted to repeatedly swing through a given scan angle. An optical arrangement of mirrors in side-by-side relationship receives the light beam from the scanning mirror and directs it in successive side-by-side parallel directions or channels towards the fabric to irradiate successive areas of the fabric across its width. A de-scanning mirror is mounted to repeatedly swing through the same given scan angle in synchronism with the scanning mirror and a second optical arrangement of mirrors in alignment with the first mentioned mirrors receives the beam after passing through successive areas of the fabric and directs it to the de-scanning mirror. The beam reflected from the de-scanning mirror in turn can then be analyzed.
REFERENCES:
patent: 3657727 (1972-04-01), Blevins
patent: 3659950 (1972-05-01), Troll et al.
patent: 3709610 (1973-01-01), Kruegle
Corbin John K.
DE LOS Reyes B. Wm.
Greenwood Mills, Inc.
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