(19)

(11)

EP 2 229 600 A1

(12)

(43) Date of publication: 22.09.2010 Bulletin 2010/38 (21) Application number: 08856455.4 (22) Date of filing: 03.12.2008

(51) International Patent Classification (IPC):  G02B 6/08(2006.01) G01N 21/64(2006.01) (86) International application number: PCT/IB2008/055081 (87) International publication number: WO 2009/072072 (11.06.2009 Gazette 2009/24)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 06.12.2007 US 992736 P (71) Applicant: Koninklijke Philips Electronics N.V. 5656 AE Eindhoven (NL)	(72) Inventors: VAN BOMMEL, Ties NL-5656 AE Eindhoven (NL) HIKMET, Rifat, Ata, Mustafa NL-5656 AE Eindhoven (NL) VAN SPRANG, Hans NL-5656 AE Eindhoven (NL) VERSCHUUREN, Marcus, Antonius NL-5656 AE Eindhoven (NL) (74) Representative: Kroeze, Johannes Antonius  Philips Intellectual Property & Standards P.O. Box 220 5600 AE Eindhoven 5600 AE Eindhoven (NL)