US 11,852,463 B2
Projectors of structured light
Benny Pesach, Rosh Haayin (IL); Zafrir Mor, Ein Habsor (IL); Shimon Yalov, Nes Ziona (IL); and Alexander Shpunt, Portola Valley, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by APPLE INC., Cupertino, CA (US)
Filed on Jun. 7, 2021, as Appl. No. 17/340,108.
Application 17/340,108 is a division of application No. 15/265,877, filed on Sep. 15, 2016, granted, now 11,060,851.
Application 15/265,877 is a continuation of application No. 14/242,895, filed on Apr. 2, 2014, abandoned.
Application 14/242,895 is a continuation of application No. 13/567,095, filed on Aug. 6, 2012, granted, now 8,749,796, issued on Jun. 10, 2014.
Claims priority of provisional application 61/611,075, filed on Mar. 15, 2012.
Claims priority of provisional application 61/521,406, filed on Aug. 9, 2011.
Prior Publication US 2021/0293533 A1, Sep. 23, 2021
Int. Cl. G01B 11/25 (2006.01); G06T 7/521 (2017.01); H01S 5/00 (2006.01); H01S 5/42 (2006.01); G02B 27/10 (2006.01)
CPC G01B 11/2513 (2013.01) [G01B 11/25 (2013.01); G02B 27/106 (2013.01); G02B 27/1086 (2013.01); G06T 7/521 (2017.01); H01S 5/005 (2013.01); H01S 5/423 (2013.01); H01L 2224/48091 (2013.01)] 20 Claims
OG exemplary drawing
 
1. Optical apparatus, comprising:
a beam source, which is configured to generate an optical beam having a pattern imposed thereon;
a projection lens, which is configured to receive and project the optical beam so as to cast the pattern onto a first area in space having a first angular extent; and
a field multiplier, which is interposed between the projection lens and the first area and is configured to expand the projected optical beam so as to cast the pattern onto a second area in space having a second angular extent that is at least 50% greater than the first angular extent.