Eyewear Projector Heat Sink Shields for Thermal and EM Control

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Solution Overview

Problem

Eyewear projectors generate heat during operation, which can lead to thermal management challenges and potential performance issues.

Innovation Solution

The implementation of first and second shields that individually sink heat from the light source and provide electromagnetic shielding for the projector, with a processor controlling the projector, ensuring even and efficient heat dissipation in different directions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a projector is implemented in eyewear to generate viewable images, then the functionality and versatility of the eyewear is improved, but heat is generated during operation causing thermal management challenges

Engineering Contradiction:
ImprovefunctionalityVSAvoidheat generation
Core Design Contradiction:
Adaptability or versatilityVSTemperature

Solution Approach 1:

The patent divides the heat dissipation system into multiple segments: a first shield for electromagnetic shielding, a second shield for heat sinking, and a third shield for additional heat sinking. These segmented shields work together to manage different aspects of heat and electromagnetic radiation separately, allowing effective thermal management while maintaining projector functionality in eyewear.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces intermediary heat sink shields between the projector light source and the surrounding environment. These shields act as mediators that intercept and redirect heat away from sensitive components and the user's face, enabling the projector to function without causing thermal discomfort or damage.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Power

If heat is generated by the projector and electronics, then the projector can operate and produce images, but the heat can cause performance issues and potential damage

Engineering Contradiction:
Improveprojector operationVSAvoidperformance stability
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The patent implements heat sink shields that are positioned and configured in advance to intercept heat before it can accumulate to harmful levels. The shields are pre-designed with specific geometries and materials to redirect heat away from the projector and electronics, ensuring reliable operation before thermal problems can arise.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent converts the harmful heat generated by the projector into a manageable thermal flow by using reflective and conductive shields. The shields redirect heat toward designated heat dissipation paths, transforming what would be a harmful thermal accumulation into a controlled heat transfer process that maintains projector reliability.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Temperature

If shields are added to manage heat and electromagnetic radiation, then thermal management and EM shielding are improved, but the device complexity increases

Engineering Contradiction:
Improveheat managementVSAvoidstructure complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent designs shields that perform multiple functions simultaneously: the first shield provides electromagnetic shielding while the second and third shields provide heat sinking. This multi-functionality reduces the need for separate components, managing heat and EM radiation with an integrated shield system that minimizes overall device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges electromagnetic shielding and heat sinking functions into a unified shield structure. By combining these protective functions into integrated shields rather than separate components, the design reduces the number of parts while achieving both thermal management and electromagnetic shielding goals.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The shields effectively manage heat dissipation and electromagnetic shielding, maintaining the performance and functionality of the projector.

Implementation Method 1

The shields sink heat evenly and efficiently, to different portions of the eyewear

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

provide electromagnetic shielding for the projector

Methodology Applied
Scientific EffectElectromagnetic shielding: Faraday Cage

Data Source

PatentUS20260086377A1Eyewear having a projector with heat sink shields
Publication Date: 2026.03.26 SNAP INC
  • US20260086377A1 patent drawing
  • US20260086377A1 patent drawing
  • US20260086377A1 patent drawing

AI summary

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.