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:
Jan. 23, 2007
Filed:
Aug. 22, 2003
Christopher Busch, Eindhoven, NL;
Marcello Leonardo-mario Balistreri, Eindhoven, NL;
Willem Gerard Ophey, Eindhoven, NL;
Christopher Busch, Eindhoven, NL;
Marcello Leonardo-Mario Balistreri, Eindhoven, NL;
Willem Gerard Ophey, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a scanning apparatus for scanning information in an information carrier () comprising a plurality of layers for storing data on a material capable of generating an excited radiation when interacting with an exciting beam () produced by an exciting source (). The scanning apparatus comprises an objective lens () for projecting the exciting beam in a layer of the carrier and collecting the excited radiation. The scanning apparatus also comprises a detector unit () for detecting the excited radiation collected on the objective lens. According to the invention, the exciting beam has a numerical aperture lower than the lens numerical aperture.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile