HMD Support Member Coupling Structure for Eyeglass Positioning
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Solution Overview
Problem
Existing head-mounted display (HMD) technologies face challenges in accurately regulating the position of the HMD with respect to eyeglasses, particularly when the eyeglasses have thin temples.
Innovation Solution
The head-mounted display apparatus includes a support member with a first coupled portion and an extension member with a second coupled portion, both coupled via a coupling member. The first coupled portion is wider than the second coupled portion in a specific direction, allowing for precise positioning and comfortable wear over eyeglasses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a support unit is placed on the upper surface of thin temple arms, then the HMD position can be regulated, but it becomes difficult to place the support unit and positioning accuracy deteriorates
Solution Approach 1:
The coupling structure is divided into two distinct parts: a first coupled portion on the support member and a second coupled portion on the extension member. This segmentation allows each part to be optimized independently - the first coupled portion can be wider to distribute pressure on thin temples, while the second coupled portion can be narrower for precise positioning, thereby resolving the contradiction between ease of placement and positioning accuracy.
Solution Approach 2:
The width of the coupled portions varies locally to match different functional requirements. The first coupled portion has a greater width in the third direction to provide comfort and stability on thin temple arms, while the second coupled portion has a narrower width for accurate positioning. This local variation in dimensions allows the structure to simultaneously achieve both ease of placement and positioning precision.
2Adaptability or versatility
If the support unit is placed on thin temple arms, then the HMD can be worn with eyeglasses, but positioning reliability deteriorates
Solution Approach 1:
The coupling structure incorporates rotational freedom between the support member and extension member, allowing the system to adapt dynamically to different wearing conditions. The asymmetric width configuration (wider first coupled portion, narrower second coupled portion) provides stable positioning while accommodating variations in temple arm thickness, thereby maintaining both eyeglasses compatibility and positioning reliability across different user scenarios.
Data Source
AI summary
A head-mounted display apparatus includes a support member that supports a first display unit and a second display unit that display images, an extension member extending in a second direction intersecting a first direction along a direction from the first display unit to the second display unit, and a coupling member coupling the support member to the extension member, in which the support member has a first coupled portion coupled to the extension member, the extension member has a second coupled portion coupled to the support member, and a thickness (width) of the first coupled portion is thicker (wider) than a thickness (width) of the second coupled portion in a third direction intersecting the first direction and the second direction.