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(11)

EP 3 063 576 A1

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(43) Date of publication: 07.09.2016 Bulletin 2016/36 (21) Application number: 13788720.4 (22) Date of filing: 30.10.2013

(51) International Patent Classification (IPC):  G02B 6/44(2006.01) (86) International application number: PCT/EP2013/072677 (87) International publication number: WO 2015/062645 (07.05.2015 Gazette 2015/18)

(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 (71) Applicant: Prysmian S.p.A. 20126 Milano (IT)	(72) Inventors: WEDGBROW, Phil I-20126 Milano (IT) VAUTRIN, Guillaume I-20126 Milano (IT) LANG, Ian Dewi I-20126 Milano (IT) (74) Representative: Colombo, Stefano Paolo et al Marchi & Partners S.r.l. Via Vittor Pisani, 13 20124 Milano 20124 Milano (IT)