Patent ID: 11940633
Assignee: INTEL CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 21:
22. A light emitting device comprising:
an infra-red (IR) or near-infra-red (NIR) illuminator comprising multiple arrays of vertical-cavity surface emitting lasers (VCSELs) each having a light emitting layer; and
wherein the VCSELs of one array have apertures that are a different size than apertures of VCSELs of at least one other array so that the dominant wavelength of the one array and other array is sufficiently different to reduce speckle; and
multiple groups of phase scrambling particles deposited on the light emitting layers wherein each group has the particles spaced from each other, the multiple groups comprising intentional variation between at least two of the groups in at least one of: sizes of the particles, at least one material forming the particles, and spacing between the particles.