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 8456726 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 04, 2013

Filed:

Mar. 07, 2011
Applicants:

Naoto Watanabe, Atsugi, JP;

Toshiaki Tokita, Yamato, JP;

Inventors:

Naoto Watanabe, Atsugi, JP;

Toshiaki Tokita, Yamato, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A light scanning device scanning a plurality of scanned faces by a light beam, includes a light source unit emitting a plurality of light beams including a first light beam and a second light beam having different polarization directions to each other; a beam splitter splitting each of the first light beam and the second light beam emitted from the light source unit; an incident optical system allowing each of split first light beams to be incident with an a angular difference to each other, and allowing each of split second light beams to be incident with an angular difference to each other; a deflector respectively deflecting each of the split first light beams and each of the split second light beams entered from the incident optical system; and a scanning optical system, including a polarization splitting device for splitting a plurality of the light beams deflected by the deflector based on a difference in a polarization direction, individually focusing each of the plurality of the light beams split by the polarization splitting device on a corresponding scanned face.


Find Patent Forward Citations

Watanabe, Naoto. (2013). Light scanning device, and image forming apparatus having the same (U.S. Patent No. 8456726). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8456726

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