Spectrophotometric scanner

Details Spectrophotometric scanner Spectrophotometric scanner

2006-05-17

2008-10-28

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

Of light reflection

With diffusion

C356S402000, C356S406000, C356S445000, C356S447000, C348S195000

Reexamination Certificate

active

07443508

ABSTRACT:
A spectrophotometric scanner suitable for producing spectral reflectance images of surfaces of samples for a plurality of wavelength bands is disclosed. The spectrophotometric scanner comprises a scanner head for collecting spectral reflectance data, a positioning mechanism for positioning the scanner head in relation to a surface, and a computing device for controlling the mechanism and recording and analyzing the spectral reflectance data. The computing device directs the positioning mechanism to position the scanner head on a row of locations in a grid of locations of the surface; directs the scanner head to measure spectral reflectance data for each location in the row of locations; records and analyzes the spectral reflectance data; and produces spectral reflectance images from the spectral reflectance data. A light source in the scanner head comprises a plurality of sequentially controllable LEDs, each producing light in a different wavelength band.

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