Optics: measuring and testing – By shade or color – With sample responsive to plural colors applied simultaneously
Reexamination Certificate
2005-12-15
2010-12-28
Chowdhury, Tarifur (Department: 2886)
Optics: measuring and testing
By shade or color
With sample responsive to plural colors applied simultaneously
C356S319000
Reexamination Certificate
active
07859668
ABSTRACT:
A method includes generating at least one first light beam and generating at least one second light beam and at least one third light beam using the at least one first light beam. The at least one first light beam has a plurality of first regions, the at least one second light beam has a plurality of second regions, and the at least one third light beam has a plurality of third regions. Each of the first, second, and third light beams has at least two regions that are spectrally different. The method also includes measuring a spectrum in each of a plurality of first wavelength bands for each of the second regions. The method further includes illuminating at least part of an object with the at least one third light beam to produce at least one fourth light beam. The at least one fourth light beam has a plurality of fourth regions, where at least two of the fourth regions are spectrally different. In addition, the method includes measuring a spectrum in each of a plurality of second wavelength bands for each of the fourth regions and identifying a radiance transfer factor of the object using at least some of the measured spectra.
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Shakespeare John F.
Shakespeare Tarja T.
Chowdhury Tarifur
Honeywell International , Inc.
Munck Carter, LLP
Pajoohi Tara S
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