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. 28, 2003
Filed:
Jan. 27, 2000
Masataka Izawa, Saitama-ken, JP;
Pioneer Corporation, Tokyo-To, JP;
Abstract
An optical integrated apparatus is used in an optical pickup apparatus which irradiates a light emitted by a light emitting device to an optical information record medium, on which record information is recorded, and receives a reflection light reflected from the optical information record medium. The optical integrated apparatus is provided with: a substrate; a light wave coupler for respectively generating a transmitted light and a guided light out of the reflection light; a light guide path for propagating the guided light; a first light receiving portion for receiving the transmitted light; and a second light receiving portion for receiving a radiant light which is generated out of the guided light and is directed toward the substrate due to a phase matching from the light guide path. The light wave coupler, the light guide path, the first light receiving portion and the second light receiving portion are laminated on the substrate. The first light receiving portion and the second light receiving portion are formed in a same layer on the substrate.