Optics: measuring and testing – Of light reflection
Reexamination Certificate
2011-04-19
2011-04-19
Punnoose, Roy (Department: 2886)
Optics: measuring and testing
Of light reflection
Reexamination Certificate
active
07929142
ABSTRACT:
Photodiode-based bi-directional reflectance distribution function (BRDF) measurement is described. Multiple photodiodes are distributed approximately symmetrically at a fixed distance from a surface to be measured. One or more of the photodiodes are directed to emit light, while readings are gathered from the other photodiodes that are not emitting light. The readings are processed based on previously measured calibration data to generate BRDF values.
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Ben-Ezra Moshe
Li Xiaoyang
Matsushita Yasuyuki
Wilburn Bennett S
Lee & Hayes PLLC
Microsoft Corporation
Punnoose Roy
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