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 8462405 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 11, 2013

Filed:

Mar. 16, 2010
Applicants:

Katsunori Kawano, Ashigarakami-gun, JP;

Shin Yasuda, Ashigarakami-gun, JP;

Akihiko Naya, Ebina, JP;

Kazuo Baba, Ebina, JP;

Inventors:

Katsunori Kawano, Ashigarakami-gun, JP;

Shin Yasuda, Ashigarakami-gun, JP;

Akihiko Naya, Ebina, JP;

Kazuo Baba, Ebina, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/46 (2006.01); H04N 1/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image-reading apparatus includes a light dividing unit that divides irradiated light so that a part of the light having a first wavelength is diffracted, and a part of the light having a second wavelength is transmitted; a first light measuring unit that measures an intensity of light entering into a first measuring area, and outputs first measurement information indicating the measured intensity; a second light measuring unit that measures an intensity of light entering into a second measuring area, and outputs second measurement information indicating the measured intensity; an image-forming unit that forms an image of a subject for reading in the first measurement area, and that forms a virtual image in the second measurement area using light diffracted by the light dividing unit; and a generation unit that corrects the first measurement information on the basis of the second measurement information.


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Kawano, Katsunori. (2013). Image-reading apparatus (U.S. Patent No. 8462405). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8462405

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