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(11)

EP 3 189 363 A2

(12)

(88) Date of publication A3: 01.09.2016 (43) Date of publication: 12.07.2017 Bulletin 2017/28 (21) Application number: 15867364.0 (22) Date of filing: 27.08.2015

(51) International Patent Classification (IPC):  G02B 7/12(2006.01) G02B 23/18(2006.01) (86) International application number: PCT/US2015/047090 (87) International publication number: WO 2016/093904 (16.06.2016 Gazette 2016/24)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA (30) Priority: 05.09.2014 US 201462046195 P (71) Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc. Nashua, NH 03061-0868 (US)	(72) Inventor: FRANZINI, John R. Hollis, New Hampshire 03049 (US) (74) Representative: BAE SYSTEMS plc Group IP Department  Farnborough Aerospace Centre Farnborough Hampshire GU14 6YU Farnborough Aerospace Centre Farnborough Hampshire GU14 6YU (GB)