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.:

US 8964262 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 24, 2015

Filed:

Dec. 24, 2013
Applicant:

Canon Components, Inc., Kodama-gun, Saitama, JP;

Inventor:

Shuuichi Shimoda, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/04 (2006.01); F21V 8/00 (2006.01); H04N 1/028 (2006.01); H04N 1/193 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0068 (2013.01); H04N 1/02835 (2013.01); H04N 1/0289 (2013.01); G02B 6/0035 (2013.01); H04N 1/193 (2013.01); H04N 2201/0081 (2013.01);
Abstract

An image sensor unit includes: a light guide reflecting light rays entering through a first light entering surface and a second light entering surface provided at both ends thereof, by a reflection surface to make the light rays exit through a light exiting surface and illuminates an original; a first light source provided near the first light entering surface; a second light source provided near the second light entering surface and different in wavelength from the first light source; and a first reflection part and a second reflection part provided on the reflection surface and composed of dot patterns constituted of two kinds of dots different in spectral reflectance.


Find Patent Forward Citations

Shimoda, Shuuichi. (2015). Image sensor unit, and image reading apparatus and image forming apparatus using the same (U.S. Patent No. 8964262). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8964262

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