Adjustable Facial Interface for Head-Mounted Displays
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Solution Overview
Problem
Conventional virtual reality headsets often have facial interfaces that do not comfortably fit users with varying head or face shapes, and those who wear glasses, as they require replacement cushions for proper adjustment.
Innovation Solution
An adjustable facial-interface system with a facial-interface adjustment apparatus that includes an extending member and an adjustment lever, allowing the facial interface to be moved between contracted and extended holding positions, enabling users to customize the fit without needing replacement cushions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-size facial interface cushion is used, then the manufacturing and assembly process is simple, but users with varying head or face shapes cannot achieve a comfortable fit
Solution Approach 1:
The facial interface system employs a dynamic adjustment mechanism where the extending member can move between contracted and extended holding positions along a adjustment groove. This allows the facial interface to adapt its size dynamically to fit different user face shapes and sizes, resolving the contradiction between fixed simplicity and adaptive versatility.
Solution Approach 2:
The adjustment mechanism is segmented into distinct functional components: the extending member, adjustment lever, pivot point, and adjustment groove. This segmentation allows each component to perform its specific function while working together to achieve overall adaptability, managing the complexity through modular design.
2Adaptability or versatility
If replacement cushions are provided for different sizes, then users can achieve proper fit, but the device complexity and number of parts increases
Solution Approach 1:
The single facial interface cushion is designed to perform multiple sizing functions through the adjustment mechanism. Instead of requiring multiple cushions of different sizes, one universal cushion can be adjusted to fit various face sizes and shapes, reducing the quantity of parts needed while maintaining adaptability.
Solution Approach 2:
The system changes the physical parameter of the facial interface size by moving the extending member between holding positions. This parameter change allows a single cushion to effectively become different sizes, eliminating the need for multiple physical cushions and reducing part quantity.
3Ease of operation
If the facial interface is made adjustable, then users can customize the fit, but the device complexity increases
Solution Approach 1:
The adjustment mechanism is designed to be user-operable without requiring technical expertise. The adjustment lever provides intuitive manual control that allows users to easily customize the fit themselves, improving ease of operation while keeping the adjustment apparatus relatively simple through self-service design.
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
Enables users to comfortably wear head-mounted displays with adjustable facial interfaces, accommodating different face sizes and shapes, and allowing wearability with glasses without replacing facial interface cushions.
Implementation Method 1
the facial-interface adjustment apparatus may include a spring that biases the extending member in the contracting direction
Data Source
AI summary
A facial-interface system for a head-mounted display may include a facial interface and a facial-interlace adjustment apparatus. The facial-interface adjustment apparatus may include (1) an extending member that includes a mounting portion that is coupled to the facial interface and that defines an adjustment groove, and (2) an adjustment lever that includes an adjustment protrusion that protrudes into the adjustment groove. The adjustment lever may be rotatable about a pivot to move the adjustment protrusion along the adjustment groove. The extending member may be movable between a contracted holding position and an extended holding position by the adjustment protrusion as the adjustment protrusion moves along the adjustment groove. Various other apparatuses, systems, and methods are also disclosed.