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.:

US 6898028 B1

PDF
Full Text
Expired
Date of Patent:
May. 24, 2005

Filed:

Oct. 18, 2002
Applicants:

Josephus Arnoldus Henricus Maria Kahlman, Eindhoven, NL;

Gerard Eduard Rosmalen, Eindhoven, NL;

Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B007/02 ; G11B007/00 ; H04N007/64 ;
U.S. Cl.
CPC ...
Abstract

An optical reproducing apparatus in which reproduction of information is carried out by using an optical record carrier. In order to compensate a radial tilt between the surface of the record carrier and the objective lens, the objective lens is tilted. In the optical apparatus of the invention, the actuator of the radial displacement of the objective lens is used to also tilt the objective lens at the same time. A displacement of the objective lens in the radial direction by the actuator has a direct effect of tilting the objective lens. This is accomplished by a mechanical link between the radial displacement and the radial tilting. This has the advantage that there is no need for an extra tilt actuator to tilt the objective lens.


Find Patent Forward Citations

Kahlman, Josephus Arnoldus Henricus Maria. (2005). Optical device and optical reproducing apparatus (U.S. Patent No. 6898028). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6898028

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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