The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2009
Filed:
Jul. 25, 2005
Applicant:
Takahiro Kaihotsu, Fujisawa, JP;
Inventor:
Takahiro Kaihotsu, Fujisawa, JP;
Assignee:
Canon Components, Inc., Saitama-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 3/14 (2006.01); G01J 1/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention alters the light emission proportion of each of five LEDs for each of a plurality of accumulation cycles in a main scanning direction, in accordance with light emission conditions that are configured in the lighting condition register, causes the emission spectra of the multicolored illumination that composites the light emitted from the five LEDs to approximate three types of color-matching functions that are represented with CIEXYZ or other standard color space, and thus, use a sensor to convert the light that is illuminated by the five LEDs onto an original, and reflected therefrom, into an electrical signal.