Radiant energy – Photocells; circuits and apparatus – With circuit for evaluating a web – strand – strip – or sheet
Reexamination Certificate
2007-03-13
2007-03-13
Epps, Georgia (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
With circuit for evaluating a web, strand, strip, or sheet
C250S559220, C356S601000
Reexamination Certificate
active
11151883
ABSTRACT:
An apparatus providing a light-emitting unit for emitting a first light beam to an object and an imaging unit for capturing a first image representing the profile of the first light beam on the surface of the object and a second image representing the spectrum of the reflected first light beam.
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patent: 7038768 (2006-05-01), Takeuchi et al.
patent: 5-187833 (1993-07-01), None
Manabe, et al., “Simultaneous Measurement System of Spectral. . .”, Trans. of the Institute of Electronics, Inform. and Comm. Engineers, vol. J86-D-II, No. 6, pp. 1012-1019, 2001.
Canon Kabushiki Kaisha
Canon USA , Inc. Intellectual Property Division
Epps Georgia
Williams Don
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