US 11,692,689 B2
Light output system with reflector and lens for highly spatially uniform light output
Bradley Jay Sissom, Boulder, CO (US); Heidi Leising Hall, Webster, NY (US); and Kevin Curtis, Boulder, CO (US)
Assigned to Magic Leap, Inc., Plantation, FL (US)
Filed by Magic Leap, Inc., Plantation, FL (US)
Filed on Jul. 1, 2022, as Appl. No. 17/856,829.
Application 17/856,829 is a continuation of application No. 16/378,409, filed on Apr. 8, 2019, granted, now 11,378,256.
Application 16/378,409 is a continuation of application No. 15/442,451, filed on Feb. 24, 2017, granted, now 10,306,213, issued on May 28, 2019.
Claims priority of provisional application 62/300,742, filed on Feb. 26, 2016.
Prior Publication US 2022/0333764 A1, Oct. 20, 2022
Int. Cl. F21V 13/00 (2006.01); F21V 13/04 (2006.01); F21V 8/00 (2006.01); H04N 13/315 (2018.01); G02B 27/01 (2006.01); H04N 13/344 (2018.01); G02B 30/50 (2020.01); G02B 6/12 (2006.01); G02B 23/06 (2006.01)
CPC F21V 13/04 (2013.01) [G02B 6/005 (2013.01); G02B 6/0076 (2013.01); G02B 6/0055 (2013.01); G02B 23/06 (2013.01); G02B 27/0172 (2013.01); G02B 30/50 (2020.01); G02B 2006/12102 (2013.01); G02B 2027/0134 (2013.01); G02F 2201/00 (2013.01); H04N 13/315 (2018.05); H04N 13/344 (2018.05)] 15 Claims
OG exemplary drawing
 
1. A display system comprising:
a reflector comprising:
an input end;
an output end;
an even number of faceted sides extending between the input end and the output end, wherein two opposing sides of the reflector have a first curved cross-sectional profile and the remaining sides have a second curved cross-sectional profile different from the first cross-sectional profile;
a lens located one focal length away from the input end of the reflector;
a light modulating device configured to receive and to modulate light outputted from the lens to form image light; and
a stack of waveguides, wherein each waveguide of the stack comprises:
a light incoupling optical element configured to incouple image light received from the light modulating device, wherein different light incoupling optical elements are in a path of light of different light emitters; and
a light outcoupling optical element,
wherein light outcoupling optical elements of some waveguides are configured to output light with different amounts of divergence than light outcoupling optical element of some of the other waveguides of the stack of waveguides,
wherein light incoupling optical elements of different waveguides, as seen in a sideview of the waveguide stack, are laterally displaced relative to one another.