(19)

(11)

EP 3 069 073 A1

(12)

(43) Date of publication: 21.09.2016 Bulletin 2016/38 (21) Application number: 14806140.1 (22) Date of filing: 12.11.2014

(51) International Patent Classification (IPC):  F21K 99/00(2016.01) G02B 5/02(2006.01) F21V 8/00(2006.01) (86) International application number: PCT/US2014/065165 (87) International publication number: WO 2015/073505 (21.05.2015 Gazette 2015/20)

(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: 15.11.2013 US 201361904664 P (71) Applicant: Dolby Laboratories Licensing Corp. San Francisco, CA 94103 (US)	(72) Inventors: NINAN, Ajit San Francisco, California 94103 (US) WAN, Chun-Chi San Francisco, California 94103 (US) (74) Representative: Dolby International AB Patent Group Europe  Apollo Building, 3E Herikerbergweg 1-35 1101 CN Amsterdam Zuidoost 1101 CN Amsterdam Zuidoost (NL)