US 12,270,948 B2
Source-camera assembly with light path for a reference pixel
Jeremiah Nyaribo, Burbank, CA (US); and Harish Venkataraman, Buckley, WA (US)
Assigned to Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on Nov. 7, 2022, as Appl. No. 17/981,895.
Claims priority of provisional application 63/395,422, filed on Aug. 5, 2022.
Prior Publication US 2024/0045035 A1, Feb. 8, 2024
Int. Cl. G01S 7/481 (2006.01); G01S 17/894 (2020.01); G02B 27/01 (2006.01); H04N 23/50 (2023.01); H04N 23/56 (2023.01)
CPC G01S 7/4818 (2013.01) [G01S 7/4813 (2013.01); G01S 17/894 (2020.01); G02B 27/0172 (2013.01); H04N 23/50 (2023.01); H04N 23/56 (2023.01); G02B 2027/0138 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A source-camera assembly comprising:
a projector including a source array configured to emit light and a lens assembly configured to direct the light into a local area;
a camera assembly including a sensor and a reference pixel that are both coupled to a sensor substrate, wherein the sensor is configured to detect the emitted light reflected from an object within the local area;
a reference waveguide configured to guide a portion of the light emitted by the projector from the source array to the reference pixel, wherein the light detected by the sensor and the light detected by the reference pixel are used to determine depth information for the object;
an opaque overmold that is opaque to the emitted light and applied to the projector, the camera assembly, and the reference waveguide; and
a flexible circuit board (FCB) to which the camera assembly and the projector are coupled, and the opaque overmold also covers a portion of the FCB, wherein the opaque overmold is disposed between the reference waveguide and the FCB.