(19)

(11)

EP 1 687 662 A2

(12)

(88) Date of publication A3: 20.04.2006 (43) Date of publication: 09.08.2006 Bulletin 2006/32 (21) Application number: 04817900.6 (22) Date of filing: 24.11.2004

(51) International Patent Classification (IPC):  G02B 5/00(2006.01) (86) International application number: PCT/US2004/039592 (87) International publication number: WO 2005/050255 (02.06.2005 Gazette 2005/22)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR Designated Extension States: AL HR LT LV MK YU (30) Priority: 24.11.2003 US 720772 24.11.2003 US 720650 (71) Applicant: The Boeing Company Chicago, IL 60606-1596 (US)	(72) Inventors: EIGLER, Lynne, C. Simi Valley, CA 93063 (US) TAM, Yan, S. Oak Park, CA 91377 (US) (74) Representative: McLeish, Nicholas Alistair Maxwell  Boult Wade Tennant Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)