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:
Apr. 14, 2009
Filed:
Jul. 08, 2004
Hideyoshi Horimai, Kanagawa, JP;
Yoshio Aoki, Kanagawa, JP;
Hideyoshi Horimai, Kanagawa, JP;
Yoshio Aoki, Kanagawa, JP;
Optware Corporation, Kanagawa, JP;
Abstract
It is an object of the invention to provide an optical information reproducing apparatus and an optical information storing/reproducing apparatus which utilize holography, wherein noise due to reference light is reduced than in conventional apparatuses. An optical system in which arrangement is made so that at least part of a light path of reference light for reproduction is redundant with a light path of reproduction light, and a means to let through the reproduction light and shut out reflected light of the reference light for reproduction, which is reflected by a storage medium on the redundant path are provided.