Snap Inc.

Other

Andrea Ashwood

Stephen Andrew Steger

Patrick Timothy McSweeney Simons

Nicholas Larson

Michael Wollman

Ugur Olgun

Russell Douglas Patton

Gerald Nilles

Jun Lin

Douglas Wayne Moskowitz

Patrick J Kusbel

Ashutosh Yugesh Shukla

Patrick Timothy Mcsweeney Simons

Jason Heger

John James Robertson

Daniel C Wiggins

David G Fliszar

Michael Ryner

Nicholas Daniel Streets

Emily Lauren Clopp

Choonshin You

Dillon Johnson

Mingyang Chai

Mehmood Zafarullahkhan

Patrick Kusbel

A projector, such as for eyewear, having a first and second shield that individually sink heat from a light source and provide electromagnetic (EM) shielding for the projector, and a processor controlling the projector. The shields sink heat evenly and efficiently, to different portions of the eyewear. In one example, the heat is directed in different directions. The shields encompass the light source and the processor, and they may be parallel to one another. The thickness of the shield coupled to the light source is thicker proximate the light source. The shields may be separated from each other by a thermal insulating material.

Eyewear having a projector with heat sink shields

A method of dissipating heat generated by imaging devices and processing devices of a wearable electronic eyewear device includes providing a first heat sink thermally connecting the imaging devices to a frame of the eyewear device to sink heat to the frame and providing a second heat sink thermally connecting the processing devices to respective temples of the eyewear device to sink heat to the respective temples. The first and second heat sinks are thermally insulated from each other to direct the heat to different portions of the eyewear device. The processing devices may include a first co-processor disposed in a first temple connected to a first end of the frame and a second co-processor disposed in a second temple connected to a second end of the frame. The resulting eyewear device spreads the heat from heat generating devices over a larger area to minimize overall heating.

Thermal architecture for smart glasses

A phase change material (PCM) is positioned about a battery of an eyewear device such that a latent energy of the PCM transfers to the battery as the ambient temperature drops to maintain a battery temperature. The latent energy maintains the temperature of the battery until the PCM loses it latent energy and converts to a solid phase. At normal operating temperatures, the PCM is in the liquid phase.

Eyewear device battery with phase change material for temperature regulation

A method and apparatus for monitoring a surface temperature of eyewear proximate a processor to understand the surface temperature as a function of computer instructions, such as when the computer instructions are modified during software design. A sensor is coupled to the eyewear proximate the processor, such as at a temple of the eyewear including the processor, using one or more layers of tape. A server provides instructions to the processor for execution, such as instructions of an application, which instructions vary the utilization of the processor. A testing device, such as a digital multi-meter, is coupled to the sensor, as well as the server, and displays the surface temperature as a function of the processor utilization. The surface temperature of the eyewear is monitored to ensure the surface temperature does not exceed a temperature threshold.

Eyewear surface temperature evaluation

A wearable device is disclosed according to one embodiment. The wearable device can include an eyewear body, onboard electronic components, a thermal coupling and a heat transfer device. The eyewear body can be configured for wearing by a user to hold one or more optical elements mounted on the eyewear body within a field of view of the user. The onboard electronic components can be carried by the eyewear body at a first portion of the eyewear body and can comprise a heat source that generates heat during electrically powered operation thereof. The thermal coupling can be thermally coupled to the heat transfer device at a second portion of the eyewear body. The elongate heat transfer device can be disposed within the eyewear body and can be thermally coupled to the heat source and the thermal coupling. The heat transfer device can extend lengthwise between the heat source and the thermal coupling to transfer heat from the heat source to the thermal coupling.

Wearable device with heat transfer pathway

An antenna system comprises a driven antenna element connected to a printed circuit board (PCB), and a plurality of PCB extenders provided by electrical conductors connected to a PCB ground plane for cooperation with the driven antenna element in signal communication. In an eyewear device that incorporates the antenna system, the plurality of PCB extenders are provided by conductive structural elements incorporated in an eyewear frame.

Wearable device antenna system

A support arm assembly for a head-worn device includes a metal support arm configured to form a rear face, a bottom face, and a top face of an enclosure for a projector, thermally coupled to the projector to act as a heatsink, configured to structurally attach to a rear structural element of the head-worn device, and configured to structurally attach to an optical element holder of the head-worn device, such that the metal support arm forms a structural support joining the optical element holder to the rear structural element without placing mechanical load on the projector.

Support arm thermal structure for extended reality glasses

An electronic eyewear device is presented that includes an eyewear body comprising a frame configured to be worn on the head of a user. The frame includes an optical elements section and spaced-apart first and second temples. The eyewear body includes onboard electronic components carried by the eyewear body that comprises a heat source that generates heat during electrically powered operation of the components. A thermal management device that includes a heat sink within a first temple and a thermal coupling disposed within the first temple and is thermally coupled to the heat source and the heat sink and receives heat from the heat source.

Eyewear device with thermal management device

Systems and methods for managing temperatures of wearable device components are disclosed. In one aspects, a method includes determining a temperature of an electronic component of the wearable device, determining a rate of temperature change of the electronic component, and determining whether to increase or decrease a transmission rate limit of the electronic component based on the temperature and the rate, adjusting the transmission rate limit based on the determination, and limiting a rate of transmission of the electronic component based on the adjusted transmission rate limit.

Temperature management in wearable devices

A wearable device can include an eyewear body, onboard electronic components, a thermal coupling and a heat transfer device. The eyewear body can hold one or more optical elements mounted on the eyewear body within a field of view of the user. The onboard electronic components can be carried by the eyewear body at a first portion of the eyewear body and can comprise a heat source that generates heat during electrically powered operation thereof. The thermal coupling can be thermally coupled to the heat transfer device at a second portion of the eyewear body. The elongate heat transfer device can be disposed within the eyewear body and can be thermally coupled to the heat source and the thermal coupling. The heat transfer device can extend lengthwise between the heat source and the thermal coupling to transfer heat from the heat source to the thermal coupling.

An eyewear device has an antenna system having at least one element which contributes to wireless signal transmission, and which is thermally connected to a heat-generating electronic component of the eyewear device to serve as a heat sink for the electronic component. A driven antenna element and/or a plurality of PCB extenders electrically connected to a PCB ground plane can thus be employed for both signal transmission and heat management.

Heat management in wireless electronic devices

A cooling device generating unidirectional air flow to cool an electrical component. The cooling device is an equivalent of an electrical acoustic diode to make air flow only one direction. A speaker generates air flow in a first passageway to a cavity, and then expels air out from the cavity through a second passageway. An electrical component is cooled by the air flow, and may be positioned adjacent the passageways, or positioned in the cavity. In one example, eyewear having an electrical component positioned in a temple is cooled by the cooling device.

Acoustic air pump

A wearable device is disclosed according to one embodiment. The wearable device can include an eyewear body, onboard electronic components and a heat transfer device. The eyewear body can be configured for wearing by a user to hold one or more optical elements mounted on the eyewear body within a field of view of the user. The onboard electronic components can be carried by the eyewear body at a first portion of the eyewear body and can comprise a heat source that generates heat during electrically powered operation thereof. The elongate heat transfer device can be disposed within the eyewear body and can be thermally coupled to the heat source. The heat transfer device can extend lengthwise between the heat source and the thermal coupling to transfer heat from the heat source through the eyewear body.

Growing community of inventors

Los Angeles, CA, United States of America

Andrea Ashwood