Inflatable Facial Interface for XR Headsets
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Solution Overview
Problem
Conventional extended reality devices suffer from discomfort due to localized pressure points on users' faces, as their facial interfaces are unable to evenly distribute pressure across various face shapes and sizes.
Innovation Solution
The implementation of an inflatable bladder facial interface in extended reality devices, which is coupled to the device's housing and can be adjusted in pressure to conform to individual facial contours, thereby distributing pressure more evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional facial interface materials are used, then the device structure is simple, but pressure distribution is uneven causing discomfort
Solution Approach 1:
The patent applies pneumatic principles by using an inflatable bladder filled with fluid (air, nitrogen, argon, or gel) to create a customizable pressure distribution system. The bladder can be inflated to different pressures to conform to various facial contours, resolving the contradiction between comfort and device complexity by introducing a controllable fluid-based mechanism.
Solution Approach 2:
The facial interface transitions from a static conventional material to a dynamic inflatable bladder system that can be adjusted in real-time. The ability to inflate and deflate the bladder allows the interface to adapt to different users and conditions, improving comfort while maintaining manageable device complexity through controlled dynamic behavior.
2Ease of operation
If foam thickness is increased to improve comfort, then pressure distribution improves, but device stability decreases and display distance increases
Solution Approach 1:
The patent replaces thick foam with a fluid-filled inflatable bladder that provides pressure distribution without the bulk. The fluid (air, nitrogen, argon, or gel) allows the bladder to conform to facial contours while maintaining a compact profile, thus improving comfort without compromising device stability or increasing display distance.
Solution Approach 2:
The patent changes the physical state from solid foam to fluid-filled bladder, allowing parameter optimization. The fluid can be adjusted to different pressures and volumes to achieve optimal comfort while maintaining a compact form factor that preserves device stability and keeps the display at the correct distance from the user's eyes.
3Ease of operation
If softer foam is used to improve comfort, then pressure distribution improves, but the foam becomes rigid when compressed against the rigid frame
Solution Approach 1:
The patent uses a fluid-filled bladder instead of soft foam to avoid the rigidity problem. The fluid (air, nitrogen, argon, or gel) maintains its compliance and ability to conform to facial contours even when compressed, because fluids are incompressible and can redistribute pressure uniformly, preventing the foam-from-rigidifying issue.
Solution Approach 2:
The patent changes the material parameter from solid foam to fluid, fundamentally altering the compression behavior. The fluid allows the bladder to remain soft and compliant under compression while maintaining structural integrity, resolving the contradiction between comfort and rigidity that plagues foam-based solutions.
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
This solution provides a more comfortable and customizable facial interface by evenly distributing pressure across the face, reducing discomfort and allowing for prolonged use without adverse effects.
Implementation Method 1
the inflatable bladder may be filled with a fluid, such as a gel, water, air, nitrogen, argon, or any of the fluids discussed throughout this application, to a baseline volume or pressure during manufacturing
Data Source
AI summary
A headset device may include a facial interface having an inflatable bladder. The inflatable bladder may be configured to conform to facial contours of a face of a user when the headset device is worn. In examples, the inflatable bladder may include one or more bladder sections that may be filled with a fluid. In some examples, based in part on receiving an input, a pressure within one or more bladder sections may be adjusted from a first pressure to a second pressure in part by adjusting a volume of fluid within the one or more bladder sections of the inflatable bladder.