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EP 3 080 654 A1

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(43) Date of publication: 19.10.2016 Bulletin 2016/42 (21) Application number: 15740706.5 (22) Date of filing: 08.01.2015

(51) International Patent Classification (IPC):  G02B 13/18(2006.01) G02B 13/00(2006.01) (86) International application number: PCT/IB2015/000409 (87) International publication number: WO 2015/110916 (30.07.2015 Gazette 2015/30)

(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 (30) Priority: 08.11.2013 WO PCT/IB2013/002905 08.01.2014 US 201461925215 P (71) Applicants: Dynaoptics Pte Ltd, A Singapore Private Limited Company Singapore 609966 (SG) Lun, Hou, Chang Singapore 650507 (SG) Lin, Cheo, Koon Singapore 310201 (SG) Chou, Lin, Ming Singapore 330049 (SG) Yuan, Kao, Yung Singapore 600107 (SG)

(72) Inventors: LUN, Hou, Chang Singapore 650507 (SG) LIN, Cheo, Koon Singapore 310201 (SG) CHOU, Lin, Ming Singapore 330049 (SG) YUAN, Kao, Yung Singapore 600107 (SG) (74) Representative: Freeman, Jacqueline Carol  WP Thompson 138 Fetter Lane London EC4A 1BT London EC4A 1BT (GB)