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:
Feb. 16, 2010
Filed:
Jun. 07, 2005
Michael Cornelis Van Beek, Eindhoven, NL;
Gerald Lucassen, Eindhoven, NL;
Marjolein Van Der Voort, Valkenswaard, NL;
Wouter Harry Jacinth Rensen, Eindhoven, NL;
Durk Jolmer DE Vries, Nijega, NL;
Michael Cornelis Van Beek, Eindhoven, NL;
Gerald Lucassen, Eindhoven, NL;
Marjolein Van Der Voort, Valkenswaard, NL;
Wouter Harry Jacinth Rensen, Eindhoven, NL;
Durk Jolmer De Vries, Nijega, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
An autofocus mechanism for a spectroscopic system determines a time varying optical property of a volume of interest. The mechanism measures the fluctuations of the optical property of the volume of interest for determining the position of the volume of interest. The spectroscopic system focuses an excitation beam into the determined volume of interest and collects return radiation emanating from the volume of interest for spectroscopic analysis. Preferably, inelastically scattered radiation of an excitation beam is separated from elastically scattered radiation for spectroscopic analysis. The elastically scattered radiation of the excitation beam is measured for fluctuations of the optical property of the volume of interest. A control loop maximizes the amplitude and/or intensity of the fluctuations and specifies the position of a volume of interest e.g. the center of a capillary vessel.