US 12,460,791 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 Nov. 1, 2024, as Appl. No. 18/934,988.
Application 18/934,988 is a continuation of application No. 18/315,415, filed on May 10, 2023, granted, now 12,264,803.
Application 18/315,415 is a continuation of application No. 17/856,829, filed on Jul. 1, 2022, granted, now 11,692,689.
Application 17/856,829 is a continuation of application No. 16/378,409, filed on Apr. 8, 2019, granted, now 11,378,256, issued on Jul. 5, 2022.
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 2025/0060085 A1, Feb. 20, 2025
Int. Cl. F21V 13/04 (2006.01); F21V 8/00 (2006.01); G02B 6/12 (2006.01); G02B 23/06 (2006.01); G02B 27/01 (2006.01); G02B 30/50 (2020.01); H04N 13/315 (2018.01); H04N 13/344 (2018.01)
CPC F21V 13/04 (2013.01) [G02B 6/005 (2013.01); G02B 6/0076 (2013.01); G02B 6/0055 (2013.01); G02B 2006/12102 (2013.01); G02B 23/06 (2013.01); G02B 2027/0134 (2013.01); G02B 27/0172 (2013.01); G02B 30/50 (2020.01); G02F 2201/00 (2013.01); H04N 13/315 (2018.05); H04N 13/344 (2018.05)] 20 Claims
OG exemplary drawing
 
1. A display system comprising:
an array of light emitters;
an array of reflectors, each reflector comprising:
a light input opening for receiving light from a respective light emitter;
a light output opening; and
reflective interior sidewalls extending between the light input opening and the light output opening, the reflective interior sidewalls configured to provide angularly uniform light output; and
an array of Fourier transform lenses, each of the Fourier transform lenses being arranged proximate the light output opening of a respective reflector of the reflectors, each of the Fourier transform lenses being configured to receive light from the respective reflector and to transform the light from the respective reflector into lens output light having increased spatial uniformity relative to the light received from the respective reflector, each of the reflectors having an associated Fourier transform lens forward of the light output opening of the respective reflector;
a light modulating device configured to receive light outputted by the array of reflectors through the Fourier transform lenses; and
at least one waveguide including at least a first waveguide comprising at least one light incoupling optical element configured to receive light from the light modulating device and at least one light outcoupling optical element configured to output light,
wherein a spatial layout of the light emitters matches a spatial layout of the reflectors, and
wherein the spatial layout of the reflectors, in planar view, overlaps with the spatial layout of the light incoupling elements such that the reflectors correspond one-to-one with a spatial layout of the light incoupling optical elements.