Color measurement instrument capable of obtaining simultaneous polarized and nonpolarized data
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United States of America Patent
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Jul 22, 2003
Grant Date -
N/A
app pub date -
May 12, 2000
filing date -
May 12, 2000
priority date (Note) -
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Abstract
A color measurement instrument capable of measuring both the nonpolarized spectral response and the polarized spectral response of a sample on a single reading. The instrument includes a source of polarized light to illuminate the sample, and a detector for measuring the light reflected by the sample. A rotatable filter wheel is located between the sample and the detector. Nonpolarizing bandpass filters and polarizing bandpass filters are mounted in the wheel in a circular configuration. A drive mechanism rotates the wheel to automatically sequentially align each of the nonpolarizing filters and the polarizing filters with the detector, enabling the instrument to sample both nonpolarized data and polarized data on a single reading.
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