(19)

(11)

EP 2 972 560 A2

(12)

(88) Date of publication A3: 20.11.2014 (43) Date of publication: 20.01.2016 Bulletin 2016/03 (21) Application number: 14775050.9 (22) Date of filing: 13.03.2014

(51) International Patent Classification (IPC):  G02B 27/01(2006.01) (86) International application number: PCT/US2014/026861 (87) International publication number: WO 2014/160500 (02.10.2014 Gazette 2014/40)

(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: 13.03.2013 US 201361780892 P 11.03.2014 US 201414205138 (71) Applicants: Aliphcom San Francisco, CA 94103 (US) Rahman, Hosain Sadequr San Francisco, California 94115 (US) Chakravarthula, Hari N. San Jose, California 95136 (US)

(72) Inventors: RAHMAN, Hosain Sadequr San Francisco, California 94115 (US) CHAKRAVARTHULA, Hari N. San Jose, California 95136 (US) (74) Representative: Johnson, Richard Alan et al Mewburn Ellis LLP City Tower 40 Basinghall Street London EC2V 5DE London EC2V 5DE (GB)