Patent ID: 11895441
Assignee: GENTEX CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 10:
11. A device for monitoring occupants of seats in a passenger compartment of a vehicle, comprising:
a plurality of structured light sources, each of the plurality of structured light sources attached to one of a plurality of heat sinks and having a diffractive optical element for forming a structured light pattern, wherein the structured light pattern is a two-dimensional light matrix, and wherein the plurality of structured light sources are oriented along a common axis and at oblique angles to a central niche, such that a plurality of structured light patterns, in combination, are directed such that they would cover said occupants of said seats of said vehicle;
a plurality of unstructured light sources arranged to illuminate an area targeted with the plurality of structured light patterns; and
a camera attached to the central niche and configured to capture image patterns resulting from distortion of the plurality of structured light patterns by said occupants of said seats, wherein the plurality of structured light sources comprises two structured light sources, and wherein each of the two light sources transmits a structured light pattern onto approximately half of a field of view of the camera.