(19)

(11)

EP 2 049 924 A2

(12)

(88) Date of publication A3: 26.06.2008 (43) Date of publication: 22.04.2009 Bulletin 2009/17 (21) Application number: 07813349.3 (22) Date of filing: 25.07.2007

(51) International Patent Classification (IPC):  G02B 3/00(2006.01) (86) International application number: PCT/US2007/074335 (87) International publication number: WO 2008/014330 (31.01.2008 Gazette 2008/05)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 25.07.2006 US 820340 P 26.07.2006 US 820483 P (71) Applicant: LAI, Shui, T. Encinitas, CA 92024 (US)	(72) Inventor: LAI, Shui, T. Encinitas, CA 92024 (US) (74) Representative: Harris, Ian Richard et al D Young & Co 120 Holborn London EC1N 2DY 120 Holborn London EC1N 2DY (GB)