Color measurement device and color measurement method

Details Color measurement device and color measurement method Color measurement device and color measurement method

2006-04-25

2006-04-25

Turner, Samuel A. (Department: 2877)

Optics: measuring and testing

By shade or color

With color transmitting filter

C356S420000

Reexamination Certificate

active

07034942

ABSTRACT:
A method, includes illuminating a first portion of a colored region with first light from a gas discharge tube and generating a first output using a diffuse reflection of the first light from the first portion. The method further includes illuminating a second portion of the colored region with second light from a first solid state lamp and generating a second output using a diffuse reflection of the second light from the second portion. Additionally, the method includes illuminating a third portion of the colored region with third light from a second solid state lamp and generating a third output using a diffuse reflection of the third light from the third portion.

REFERENCES:
patent: 5570192 (1996-10-01), Terauchi et al.
patent: 6603551 (2003-08-01), Mestha et al.
patent: 6791676 (2004-09-01), Meller
HP Patent Application, U.S. Appl. No. 09/768,662, “Color Measurement With Distributed Sensors in A Color Hard Copy Apparatus”, filed Jan. 23, 2001.
HP Patent Application, U.S. Appl. No. 09/970,419, “Compact Optical Sensing System”, filed Oct. 2, 2001.
HP Patent Application, U.S. Appl. No. 09/970,278, “Color Calibration Color Value Correction”, filed Oct. 2, 2001.
HP Patent Application, U.S. Appl. No. 09/969,745, “Tuning System For A Compact Optical Sensor”, filed Oct. 2, 2001.
HP Patent Application, U.S. Appl. No. 09/970,196, “Calibrating System For A Compact Optical Sensor”, filed Oct. 2, 2001.

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