US 12,276,799 B2
Illumination module, head-mounted display including illumination module, and method for creating uniform lighting
Yun-Cheng Liu, Taoyuan (TW); and Yi-Sheng Lee, Taoyuan (TW)
Assigned to QUANTA COMPUTER INC., Taoyuan (TW)
Filed by Quanta Computer Inc., Taoyuan (TW)
Filed on Dec. 26, 2023, as Appl. No. 18/395,903.
Claims priority of application No. 112130947 (TW), filed on Aug. 17, 2023.
Prior Publication US 2025/0060590 A1, Feb. 20, 2025
Int. Cl. G02B 27/01 (2006.01); F21V 8/00 (2006.01); G02B 27/09 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 6/0073 (2013.01); G02B 6/0088 (2013.01); G02B 27/0955 (2013.01); G02B 2027/0112 (2013.01); G02B 2027/0178 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An illumination module, comprising:
a light-emitting unit, comprising:
a light-emitting element array comprising a plurality of light-emitting elements, wherein the plurality of light-emitting elements are used for generating a plurality of light beams;
a focusing lens array comprising a plurality of focusing lenses, wherein each of the plurality of light-emitting elements corresponds to at least one of the plurality of focusing lenses, and energy distribution of each of the plurality of light beams passing through the corresponding at least one of the plurality of focusing lenses is a Gaussian distribution; and
a light-shape control element converting the energy distribution of each of the plurality of light beams into a flat-top distribution from the Gaussian distribution and controlling each of the plurality of light beams with the flat-top energy distribution to have a substantially equal illuminated area,
wherein a uniform lighting is created by superimposing the flat-top distribution of each of the plurality of light beams within the substantially equal illuminated area.