Facial Interface Assembly for HMD Glasses Clearance
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Solution Overview
Problem
Traditional head-mounted displays often interfere with glasses and fail to accommodate users with varying facial structures and shapes, leading to discomfort and difficulty in use.
Innovation Solution
A facial interface assembly featuring a contoured spacer frame with interchangeable face gaskets, including high-density and low-density foam layers and a fabric layer, which can be adjusted to accommodate different facial shapes and provide clearance for glasses, using magnetic couplings and retainer clips for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the lenses are positioned as close to the user's eyes as possible, then the visual experience is improved, but users with glasses experience interference and discomfort
Solution Approach 1:
A facial interface assembly with a contoured body and face gasket acts as an intermediary component between the HMD housing and the user's face. This assembly includes a forehead interface portion, cheek interface portions, and a bridge portion that creates clearance space, allowing both the lenses to maintain optimal positioning for visual experience and glasses to be worn comfortably without direct interference between the HMD and facial features.
2Ease of manufacture
If the head mounted display is designed for a standard facial structure, then manufacturing is simplified, but users with different facial structures experience discomfort
Solution Approach 1:
The facial interface assembly is segmented into multiple functional components: a contoured body with specific geometric features (forehead interface portion, cheek interface portions, bridge portion), an interchangeable face gasket with different density layers, and attachment mechanisms. This segmentation allows the basic contoured body to be manufactured simply while enabling customization through interchangeable gaskets and adjustable components to accommodate various facial structures.
Solution Approach 2:
The contoured body design serves multiple functions simultaneously: it provides structural support, creates appropriate clearance for glasses, accommodates different facial contours through its geometric features, and interfaces with various HMD housing types. The interchangeable face gasket further enhances universality by providing different density options for different user comfort requirements.
3Device complexity
If the distance between lenses and face is fixed, then device complexity is reduced, but comfort and usability for different users deteriorates
Solution Approach 1:
The facial interface assembly incorporates dynamic adjustment capabilities through interchangeable face gaskets of different densities and thicknesses, allowing users to adjust the distance between the lenses and their face. The attachment tabs and retention mechanisms enable easy replacement of gaskets to achieve optimal positioning, balancing device simplicity with user-specific comfort requirements.
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 comfortable and convenient use of head-mounted displays for users with glasses and diverse facial structures by adjusting the distance between the lenses and the face, improving usability and fit.
Implementation Method 1
using magnetic couplings and retainer clips for secure attachment
Data Source
AI summary
Technology is provided for a facial interface assembly for use with a head mounted display. The facial interface assembly includes a contoured spacer frame and an interchangeable face gasket removably attached to the contoured spacer frame. The contoured spacer frame includes a forehead interface portion, a pair of cheek interface portions, a bridge portion extending between the pair of cheek interface portions, and one or more attachment tabs configured to mate with a housing of the head mounted display. The face gasket includes a high-density foam layer, a low-density foam layer, and a fabric layer.