US 11,906,155 B2
Light source system and light-emitting device
Quan Zhang, Guangdong (CN); Jinjiang Fu, Guangdong (CN); and Hui Chen, Guangdong (CN)
Assigned to YLX INCORPORATED, Guangdong (CN)
Appl. No. 17/756,115
Filed by YLX INCORPORATED, Guangdong (CN)
PCT Filed Oct. 27, 2020, PCT No. PCT/CN2020/123802
§ 371(c)(1), (2) Date May 17, 2022,
PCT Pub. No. WO2021/098450, PCT Pub. Date May 27, 2021.
Claims priority of application No. 201911128958.8 (CN), filed on Nov. 18, 2019.
Prior Publication US 2022/0397259 A1, Dec. 15, 2022
Int. Cl. F21V 5/00 (2018.01); G02B 19/00 (2006.01); F21Y 115/10 (2016.01)
CPC F21V 5/007 (2013.01) [F21V 5/008 (2013.01); G02B 19/0009 (2013.01); G02B 19/0066 (2013.01); F21Y 2115/10 (2016.08)] 9 Claims
OG exemplary drawing
 
1. A light source system, comprising:
an array of light-emitting diodes, wherein the light-emitting diodes comprise light-emitting diode chips;
a collimating lens group located on a light path of light emitted by the array of the light-emitting diodes, wherein the collimating lens group is configured to collimate light beams emitted by the light-emitting diode chips; and
a fly-eye lens arranged on a light path of light outputted from the collimating lens group, wherein the fly-eye lens comprises micro lens units corresponding to the light-emitting diode chips,
wherein for at least one light-emitting diode chip of the light-emitting diode chips, an image formed by each of the at least one light-emitting diode chip on surfaces of the micro lens units is completely within a surface of one of the micro lens units, and
wherein the fly-eye lens comprises a front fly-eye lens sub-unit and a back fly-eye lens sub-unit, wherein the back fly-eye lens subunit is located at a focal plane of the front fly-eye lens sub-unit.