US 11,786,139 B2
Opaque splits embedded in transparent media for optical emitter/detector isolation
Maegan K. Spencer, Emerald Hills, CA (US); Brian R. Land, Woodside, CA (US); Naoto Matsuyuki, Kasugai (JP); Erik L. Wang, Redwood City, CA (US); William C. Lukens, San Francisco, CA (US); and Steven C. Roach, San Francisco, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Mar. 6, 2020, as Appl. No. 16/811,783.
Claims priority of provisional application 62/898,858, filed on Sep. 11, 2019.
Prior Publication US 2021/0068688 A1, Mar. 11, 2021
Int. Cl. A61B 5/024 (2006.01); A61B 5/00 (2006.01); G06F 1/16 (2006.01); H01L 31/101 (2006.01)
CPC A61B 5/02438 (2013.01) [A61B 5/681 (2013.01); G06F 1/163 (2013.01); H01L 31/101 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a housing defining an aperture and at least partially defining an internal volume of the electronic device;
an electromagnetic radiation emitter disposed in the internal volume;
an electromagnetic radiation detector disposed in the internal volume; and
an optical component disposed in the aperture, the optical component comprising:
a first transparent portion disposed above the electromagnetic radiation detector;
a second transparent portion disposed above the electromagnetic radiation emitter;
an opaque portion disposed between the first transparent portion and the second transparent portion, the opaque portion comprising sidewalls; and
the first transparent portion, the second transparent portion, and the opaque portion defining a flush exterior surface of the electronic device and an interior surface of the optical component, the opaque portion extending from the exterior surface to the interior surface; and
an isolation component disposed in the internal volume, the isolation component abutting the optical component and at least partially defining a first chamber and a second chamber, the isolation component comprising a first protrusion between the first chamber and the second chamber;
wherein:
the electromagnetic radiation detector is disposed in the first chamber and the electromagnetic radiation emitter is disposed in the second chamber;
the isolation component prevents electromagnetic radiation from passing between the second chamber and the first chamber within the internal volume; and
the first protrusion comprises sidewalls aligned with the sidewalls of the opaque portion.