VR Headset Clamping Force Adjustment via Ratchet Wire and Motor
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Solution Overview
Problem
Virtual reality (VR) headsets with closed loop designs face challenges in adjustability, making it difficult to accommodate users with varying head sizes and comfort levels, requiring time-consuming manual adjustments for different users.
Innovation Solution
An open loop VR headset design with a single band that adjusts clamping force using a ratchet wire retention system, motor, and muscle wire, combined with user recognition through iris scanning to store and apply ergonomic preferences, allowing for secure fitting and easy transition between rest and VR modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a closed loop design is used for the VR headset, then the headset provides a secure fit, but it becomes difficult to put on and off the headset
Solution Approach 1:
The closed loop band is divided into two separate bands: a support band that goes around the back of the head and a hardware band that goes across the face. This segmentation allows the headset to be more easily put on and off while maintaining secure fit through the coordinated action of both bands
Solution Approach 2:
The patent introduces dynamic adjustment mechanisms including motor-driven clamping force adjustment and movable components that allow the headset to adapt to different users and conditions, making it easier to put on while maintaining secure fit
2Adaptability or versatility
If manual adjustment mechanisms are provided for different users, then the headset can accommodate varying head sizes, but the adjustment process becomes time-consuming
Solution Approach 1:
The headset automatically detects user characteristics and adjusts clamping force and positioning without requiring manual intervention. The system self-adjusts based on sensor data, eliminating the time-consuming manual adjustment process while maintaining adaptability to different users
Solution Approach 2:
Manual mechanical adjustment mechanisms are replaced with automated motor-driven adjustment systems controlled by processors and sensors. This substitution eliminates manual manipulation while providing precise, rapid adaptation to different users
3Adaptability or versatility
If multiple adjustment settings are provided for different users, then individual comfort can be optimized, but the complexity of the adjustment system increases
Solution Approach 1:
The headset automatically determines optimal adjustment settings based on sensor measurements of user characteristics, eliminating the need for complex manual adjustment interfaces. The system self-configures for individual comfort while keeping the user interface simple
Solution Approach 2:
Sensors continuously monitor headset position, clamping force, and user characteristics, providing feedback to the control system. This feedback loop enables automatic optimization of adjustment settings based on real-time conditions, reducing the need for complex pre-programmed adjustment options
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 solution provides comfortable and secure fitting for users by adjusting clamping force based on individual preferences, ensuring proper fit and preventing the headset from slipping, while simplifying the process of switching between users.
Implementation Method 1
motor operable to adjust the clamping force
Implementation Method 2
strain gauge configured to measure the clamping force
Data Source
AI summary
A system, method, and computer-readable medium are disclosed for performing clamping force adjustment on a virtual reality (VR) headset. User preferences as to clamping force at one or more positions, such as rest position on top of the user's head and VR mode position on user's face, are determined. The preferences are stored in a user profile. When a user places the VR headset, clamping force at a position is measures and clamping force is adjusted at that position.