US 12,331,924 B2
Illumination apparatus
Bassam Hallal, Thalwil (CH); Alessandro Piotto, Thalwil (CH); and Nicolino Stasio, Zurich (CH)
Assigned to AMS-OSRAM ASIA PACIFIC PTE. LTD., Singapore (SG)
Appl. No. 18/686,443
Filed by AMS-OSRAM ASIA PACIFIC PTE. LTD., Singapore (SG)
PCT Filed Jul. 15, 2022, PCT No. PCT/SG2022/050496
§ 371(c)(1), (2) Date Feb. 26, 2024,
PCT Pub. No. WO2023/033718, PCT Pub. Date Mar. 9, 2023.
Claims priority of application No. 2112352 (GB), filed on Aug. 30, 2021.
Prior Publication US 2025/0122989 A1, Apr. 17, 2025
Int. Cl. F21V 5/00 (2018.01); G02B 27/09 (2006.01); F21Y 105/16 (2016.01); F21Y 115/30 (2016.01)
CPC F21V 5/007 (2013.01) [F21V 5/004 (2013.01); G02B 27/0922 (2013.01); F21Y 2105/16 (2016.08); F21Y 2115/30 (2016.08)] 15 Claims
OG exemplary drawing
 
1. An illumination apparatus comprising:
a periodic microlens array (MLA) comprising microlenses arranged with a first pitch d1 in a first direction;
a first set of first radiation-emitting elements arranged with a second pitch d2 being an integer multiple of the first pitch d1 and configured to generate, in cooperation with the MLA, a structured light pattern; and
a second set of second radiation-emitting elements arranged with a third pitch d3 being a non-integer multiple of the first pitch d1 in at least the first direction and configured to generate, in cooperation with the MLA, a pattern of lines or a beam for flood illumination,
wherein the third pitch d3 is defined by the equation:

OG Complex Work Unit Math
wherein ‘n’ corresponds to an amount of radiation-emitting elements in the second set of second radiation-emitting elements in the first direction.