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:
Oct. 25, 2011
Filed:
Jul. 01, 2008
Johannes Baier, Wuerselen, DE;
Holger Moench, Vaals, NL;
Johannes Baier, Wuerselen, DE;
Holger Moench, Vaals, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A surface-emitting extended cavity laser with intracavity frequency conversion is provided with at least one surface-emitting laser element with multiple layers to obtain laser light at a fundamental frequency, reflector means, spaced from the laser element to form an external cavity, a frequency conversion device, arranged within the external cavity to generate light at a second frequency and tunable optical band-pass filter means, arranged within the external cavity and detector means, where said optical band-pass filter means are tunable upon a signal, which is obtained by the detector means to enable a frequency control at the fundamental frequency.