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:
Oct. 23, 2007
Filed:
Aug. 12, 2005
Ichirou Miyagawa, Kanagawa, JP;
Ichirou Miyagawa, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
A polarization-direction-controlling element comprising a ½ wavelength plate disposed with a crystal optical axis tilted at substantially 45 degrees with respect to a polarization direction of a beam of light separated by a polarization-separating element with a part of a laser beam transmitted, is provided on the optical path of the laser beam, outputted from a plurality of semiconductor lasers, between an outlet for the laser beams at a fiber array and a polarization-separating element for separating the laser beam into two beams of light having mutually orthogonal polarization directions. A polarization-direction-controlling element capable of improving the quality of recorded images in an exposing-recording device using an element with polarization dependency and an exposure device capable of improving the quality of recorded images can also be obtained.