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:
Jul. 05, 2005
Filed:
Mar. 31, 2000
Ian Redmond, Boulder, CO (US);
Bernard Bell, Lafayette, CO (US);
David L. Blankenbeckler, Longmont, CO (US);
Michael F. Braitberg, Boulder, CO (US);
Robert D. Freeman, Erie, CO (US);
Ian Redmond, Boulder, CO (US);
Bernard Bell, Lafayette, CO (US);
David L. Blankenbeckler, Longmont, CO (US);
Michael F. Braitberg, Boulder, CO (US);
Robert D. Freeman, Erie, CO (US);
DPHI Acquisitions, Inc., Boulder, CO (US);
Abstract
An optical head of a type useable in a optical disk reader/writer is provided. The optical head has a low profile, e.g., in a vertical direction parallel to the disk spin axis, such as less than about 5 mm preferably less than about 3 mm. Substantially all components of the optical system, including a laser source, objective lens, intervening optics and photo detector are provided in the optical head and mounted in a fixed position with respect to one another. Substantially all optical components of the optical head are moved as a unit, e.g., during tracking and/or focusing. Preferably, the optical head is fabricated using wafer scale and/or stacking technologies, e.g., stacking substantially planar components to achieve the final optical head configuration.