US 11,994,695 B2
Fly-eye lens module, lighting device, and DLP optical engine
Yexin Xia, Shenzhen (CN); Liang Mei, Shenzhen (CN); Mingnei Ding, Shenzhen (CN); Steve Yeung, Hongkong (CN); and Zhiqiang Gao, Hongkong (CN)
Assigned to IVIEW DISPLAYS (SHENZHEN) COMPANY LTD., Shenzhen (CN)
Filed by IVIEW DISPLAYS (SHENZHEN) COMPANY LTD., Shenzhen (CN)
Filed on May 4, 2023, as Appl. No. 18/311,948.
Application 18/311,948 is a continuation of application No. PCT/CN2021/106873, filed on Jul. 16, 2021.
Claims priority of application No. 202110496628.5 (CN), filed on May 7, 2021.
Prior Publication US 2023/0273349 A1, Aug. 31, 2023
Int. Cl. G02B 3/00 (2006.01); F21V 5/00 (2018.01); G02B 27/09 (2006.01)
CPC G02B 3/0056 (2013.01) [F21V 5/004 (2013.01); G02B 27/0961 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fly-eye lens module, comprising:
a first plastic fly-eye lens, provided on a surface thereof with a first circular region, wherein the first circular region is configured as a fly-eye structure having a concave-convex structure, and the first circular region is configured to receive a circular light spot emitted from a point light source;
a second plastic fly-eye lens, provided on a surface thereof with a second circular region, wherein the second circular region is configured as a fly-eye structure having a concave-convex structure, and the second circular region is configured to emit a homogenized circular light spot; and
a cuboid glass structure, wherein the first plastic fly-eye lens and the second plastic fly-eye lens are fixed to two sides of the cuboid glass structure respectively by a bonding agent;
wherein the second plastic fly-eye lens and the first plastic fly-eye lens are disposed such that the light spot emitted from the point light source is incident to the fly-eye lens module via the first plastic fly-eye lens, and is emitted from the second plastic fly-eye lens.