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:
Sep. 02, 2003
Filed:
Oct. 05, 2000
Zhijiang Hang, Lexington, MA (US);
Victor Lazarev, Burlington, MA (US);
Other;
Abstract
A VCSEL-based monolithic optical pickup system for use with optical recording media with a retaining member, a plurality of VCSELs disposed on the retaining member for emitting laser beams, a plurality of detectors disposed on the retaining member for receiving reflected laser beams, and a stepped micro-mirror for reflecting laser beams emitted by the plurality of VCSELs toward optical recording media and for reflecting laser beams reflected from the recording media toward the plurality of detectors. The VCSELs and detectors can be disposed in laser/detector pairs wherein each detector surrounds its respective VCSEL. The system can incorporate upstanding VCSELs each with a sloped and mirrored side surface and with a detector disposed adjacent to the side surface whereby a laser beam emitted by the VCSEL can be directed to an optical recording media, then reflected from the optical recording media onto the side surface of the VCSEL, and then reflected by the side surface of the VCSEL onto the detector adjacent to the side surface of the VCSEL.