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. 15, 2014
Filed:
Mar. 15, 2010
Babu Varghese, Eindhoven, NL;
Rieko Verhagen, Vught, NL;
Bart Willem Jan Spikker, Eindhoven, NL;
Natallia Eduardauna Uzunbajakava, Eindhoven, NL;
Babu Varghese, Eindhoven, NL;
Rieko Verhagen, Vught, NL;
Bart Willem Jan Spikker, Eindhoven, NL;
Natallia Eduardauna Uzunbajakava, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A detector for detecting a birefringent object near a skin surface of a human body part or an animal body part includes a source for emitting optical radiation having first and second wavelengths and an incident polarization state. An imaging unit is configured to image the birefringent object near the surface includes a detection unit for detecting optical radiation scattered and/or reflected by the birefringent object and/or the surface at the first and second wavelengths. A control unit is configured to process a signal from the detection unit for discrimination between the birefringent object and the surface. The detection unit is configured to detect scattered and/or reflected optical radiation coming from the birefringent object and/or the surface, having a first polarization state corresponding to the incident polarization state and a second polarization state being different from the first polarization state.