US 2023/0414122 A1Published application

Opaque splits embedded in transparent media for optical emitter/detector isolation

AssigneeApple Inc.

InventorsMaegan K. Spencer, Brian R. Land, Naoto Matsuyuki, Erik L. Wang, William C. Lukens, Steven C. Roach

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Abstract

An electronic device can include a housing defining an aperture and at least partially defining an internal volume of the electronic device, an electromagnetic radiation emitter and an electromagnetic radiation detector disposed in the internal volume, and an optical component disposed in the aperture. The optical component can include a first and second transparent portions disposed above the electromagnetic radiation detector and the electromagnetic radiation emitter, and an opaque portion disposed between the first and second transparent portions and extending a thickness of the optical component. The first transparent portion, the second transparent portion, and the opaque portion can define a flush exterior surface of the electronic device.

An electronic device, comprising:

a housing defining an aperture and at least partially defining an internal volume of the electronic device;
a first electromagnetic radiation emitter disposed in the internal volume;
a second electromagnetic radiation emitter disposed in the internal volume;
an electromagnetic radiation detector disposed in the internal volume;
an optical component disposed in the aperture, the optical component comprising:
a first transparent portion disposed above the first electromagnetic radiation emitter;
a second transparent portion disposed above the second electromagnetic radiation emitter;
a third transparent portion disposed above the electromagnetic radiation detector;
and
a first opaque portion surrounding the first transparent portion, a second opaque portion surrounding the second transparent portion, the first and second opaque portions comprising sidewalls, the first transparent portion, the second transparent portion, the third transparent portion, and the first and second opaque portions defining a flush exterior surface of the electronic device and an interior surface of the optical component, the first and second opaque portions extending from the exterior surface to the interior surface;
a first isolation protrusion disposed in the internal volume between a first chamber and a second chamber, the first isolation protrusion abutting the optical component and at least partially defining the first chamber and the second chamber;
and
a second isolation protrusion disposed in the internal volume between the first chamber and a third chamber, the second isolation protrusion abutting the optical component and at least partially defining the first chamber and the third chamber;
wherein:
the first electromagnetic radiation emitter is disposed in the first chamber, the second electromagnetic radiation emitter is disposed in the second chamber, and the electromagnetic radiation detector is disposed in the third chamber;
the first isolation protrusion and the second isolation protrusion prevent electromagnetic radiation from passing between the first chamber, the second chamber, and the third chamber within the internal volume;
and
the first isolation protrusion comprises sidewalls aligned with the sidewalls of the first and second opaque portions and the second isolation protrusion comprises sidewalls aligned with the sidewalls of the first and third opaque portions.

15 more elements

Facts

Application

18/462,603Filed 7 Sep 2023

Priority

11 Sep 2019

Published

28 Dec 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61B 5/02438
Measuring pulse rate or heart rate: with portable devices, e.g. worn by the patient
G06F 1/1684
Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626:…
A61B 5/681
Sensor mounted on worn items: wristwatch-type devices
G06F 1/163
For portable computers: wearable computers, e.g. on a belt

Family

Application62/898,858Us provisional application · filed 11 Sep 2019

Application16/811,783Continuation · filed 6 Mar 2020

Application18/462,603Continuation

US 11,786,139 B2Related patent

US 12,226,197 B2Related patent

US 2021/0068688 A1Published application

US 2023/0414122 A1This patent

From the US filing history. Foreign family members aren’t listed.

Abstract

Claims20