Patent ID: 11927339
Assignee: AMS SENSORS ASIA PTE. LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  G | IPC F  G

Claim 0:
1. An illumination apparatus for producing structured light and flood illumination, the illumination apparatus comprising:
a microlens array comprising microlenses which are arranged at a pitch P in at least a first direction; and
a first array of first light sources and a second array of second light sources, the first light sources being 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 second light sources include emitters with diffusers located on the second light sources;
wherein the first light sources are emitters without diffusers located on the emitters; and
wherein the diffusers provide the second light sources with a physical size which is greater than a physical size of the first light sources, such that the light sources of the second array have an etendue greater than an etendue of the light sources of the first array,
wherein the light sources of the first array produce structured light and the light sources of the second array produce a continuous area of light.