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. 24, 2007
Filed:
Jul. 02, 2003
Michael Adrianus Henricus Van Der, Eindhoven, NL;
Gerardus Lucien Mathildus Jansen, Eindhoven, NL;
Gerard Johannes Pieter Nijsse, Eindhoven, NL;
Johannes Joseph Hubertina Barbara Schleipen, Eindhoven, NL;
Aukje Arianne Annette Kastelijn, Eindhoven, NL;
Frank Cornelis Penning, Eindhoven, NL;
Willem Gerard Ophey, Eindhoven, NL;
Michael Adrianus Henricus Van Der, Eindhoven, NL;
Gerardus Lucien Mathildus Jansen, Eindhoven, NL;
Gerard Johannes Pieter Nijsse, Eindhoven, NL;
Johannes Joseph Hubertina Barbara Schleipen, Eindhoven, NL;
Aukje Arianne Annette Kastelijn, Eindhoven, NL;
Frank Cornelis Penning, Eindhoven, NL;
Willem Gerard Ophey, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
An optical scanning device for scanning an information layer of an optical record carrier and including a rotary aim () which is arranged to swing about a rotation axis (CR) to alter an angular position of the rotary arm about the rotation axis; a detector arrangement () arranged separate from the rotary arm () for detecting a radiation beam spot, the radiation beam spot () having an angular disposition; a first reflective surface () attached to the rotary arm (); a second reflective surface () attached to the rotary arm (); a first light path (LP; LPO; LP; LP; LP; LP; running from a location on the record carrier to said first reflective surface; a second light path (LP; LP; LP; LP; LP; LP) running from said first reflective surface to said second reflective surface; a third light path (LP; LP; LP; LP; LP; LP) running from said second reflective surface to said detector arrangement (). The rotary arm includes at least one optical inversion element () arranged such that a dependence between variation of the angular disposition of the radiation beam spot and variation of the angular position of the rotary arm is reduced.