(19)

(11)

EP 2 311 051 A1

(12)

(43) Date of publication: 20.04.2011 Bulletin 2011/16 (21) Application number: 09793731.2 (22) Date of filing: 08.05.2009

(51) International Patent Classification (IPC):  H01B 11/18(2006.01) G01R 33/36(2006.01) H04B 3/02(2006.01) G01R 33/28(2006.01) H01B 7/17(2006.01) A61B 5/055(2006.01) (86) International application number: PCT/CA2009/000597 (87) International publication number: WO 2010/003215 (14.01.2010 Gazette 2010/02)

(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 MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 07.07.2008 CA 2636936 (71) Applicant: IMRIS Inc Winnipeg, MB R3T 1N5 (CA)	(72) Inventors: ZHU , Haoqin Winnipeg, Manitoba R3T 1N5 (CA) LI , Jonathan Winnipeg, Manitoba R3T 1N5 (CA) SAUNDERS , John, K . Winnipeg, Manitoba R3T 1N5 (CA) (74) Representative: Jostarndt, Hans-Dieter  Jostarndt Patentanwalts-AG Brüsseler Ring 51 52074 Aachen 52074 Aachen (DE)