Back to results
US 12,007,504 B2Granted
3D and LiDAR sensing modules
AssigneeVixar, Inc.
InventorsMatthew Dummer, Klein L. Johnson, Mary Hibbs-Brenner, Dadi Setiadi, Benjamin Olson
Life of this patent
Estimating the term…
Abstract
Systems and methods disclosed herein include an illumination module for 3D sensing applications. The illumination module may include an array of vertical cavity surface emitting lasers (VCSELs) emitting light, a driver configured to provide current to the array of VCSELs, and an optical element configured to receive the light emitted by the array of VCSELs and output a light pattern from the illumination module.
Claims20
An illumination module, comprising:
- an array of vertical cavity surface emitting lasers (VCSELs) emitting light, wherein at least one VCSEL in the array of VCSELs comprises a multi junction VCSEL;
- a driver configured to provide current to the array of VCSELs;
- and
- an optical element configured to receive the light emitted by the array of VCSELs and output a light pattern from the illumination module;
- wherein the array of VCSELs is segmented into a first segment of VCSELs configured to emit light and a second segment of VCSELs configured to detect light emitted by the first segment of VCSELs.
2 more elements
An illumination module, comprising:
- an array of vertical cavity surface emitting lasers (VCSELs) emitting light, wherein at least one VCSEL in the array of VCSELs comprises a multi junction VCSEL,
- a driver configured to provide current to the array of VCSELs,
- an optical element configured to receive the light emitted by the array of VCSELs and output a light pattern from the illumination module, the optical element being integrated into the array of VCSELs, and
- a photodetector located on top of the optical element.
1 more element
An illumination module, comprising:
- an array of vertical cavity surface emitting lasers (VCSELs) emitting light, wherein at least one VCSEL in the array of VCSELs comprises a multi junction VCSEL;
- a driver configured to provide current to the array of VCSELs;
- and
- an optical element configured to receive the light emitted by the array of VCSELs and output a light pattern from the illumination module, the optical element being integrated into the array of VCSELs;
- wherein the array of VCSELs is flip-chip bonded on a substrate that includes the driver and a photodetector.
2 more elements
A multi junction VCSEL comprising:
- a substrate;
- a bottom mirror;
- a top mirror;
- an active region between the top mirror and the bottom mirror, wherein the active region comprises more than one set of quantum wells, wherein each set of quantum wells is separated by a confinement layer;
- and
- a reverse biased tunnel junction between the sets of quantum wells, wherein the reverse biased tunnel junction is placed in the middle of the confinement layer;
- wherein the p- and n-doping on each side of the reversed bias tunnel junction has a value of 10 e19 / cm3 or higher.
4 more elements
Dependencies are inferred from the claim text.