US 11,927,339 B2
Illumination apparatus
Maryam Yousefi, Eindhoven (NL); Toralf Scharf, Eindhoven (NL); and Markus Rossi, Jona (CH)
Assigned to ams Sensors Asia Pte. Ltd., Singapore (SG)
Appl. No. 17/606,006
Filed by ams Sensors Asia Pte. Ltd., Singapore (SG)
PCT Filed Apr. 24, 2020, PCT No. PCT/SG2020/050252
§ 371(c)(1), (2) Date Oct. 22, 2021,
PCT Pub. No. WO2020/222704, PCT Pub. Date Nov. 5, 2020.
Claims priority of provisional application 62/840,081, filed on Apr. 29, 2019.
Prior Publication US 2022/0205611 A1, Jun. 30, 2022
Int. Cl. F21V 5/00 (2018.01); F21V 33/00 (2006.01); F21Y 113/20 (2016.01); F21Y 115/10 (2016.01); F21Y 115/30 (2016.01); G06V 10/141 (2022.01); G06V 40/16 (2022.01)
CPC F21V 5/007 (2013.01) [F21V 5/004 (2013.01); F21V 33/0052 (2013.01); G06V 10/141 (2022.01); G06V 40/166 (2022.01); F21Y 2113/20 (2016.08); F21Y 2115/10 (2016.08); F21Y 2115/30 (2016.08)] 17 Claims
OG exemplary drawing
 
17. An illumination apparatus for producing structured light and flood illumination, the illumination apparatus comprising:
a microlens array including microlenses arranged at a pitch P in at least a first direction;
a first two-dimensional rectangular array of first light sources, the first light sources including VCSELs; and
a second two-dimensional rectangular array of second light sources, the second light sources including LEDs;
wherein the first light sources are configured to emit light at a wavelength L,
wherein the first light sources are located at a distance D from the microlens array,
wherein
P2=2LD/N,
and N is an integer with N≥1;
wherein the light sources of the first two-dimensional rectangular array produce structured light and the light sources of the second two-dimensional rectangular array produce a continuous area of light.