Head-Mounted Display Frame Reducing Nose Load via Weight Distribution
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Solution Overview
Problem
Existing virtual image display apparatuses, such as HMDs, tend to increase nose load over time, leading to discomfort during prolonged use due to the distribution of weight and pressure on the nose area.
Innovation Solution
A head-mounted display apparatus with a frame that is fixed along the head, including a supporting part that can be rotated and adjusted to reduce nose load, allowing the display unit to be positioned for optimal visual recognition while minimizing contact with the nose and ears, and incorporating an imaging unit and control unit within the frame to balance weight and improve ergonomics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the nose pad member is used to support the display apparatus, then the apparatus can be worn on the head, but the load on the nose increases over time causing discomfort
Solution Approach 1:
The support function is segmented from the nose pad member to the temple portions and head-mounted frame. The nose pad member retains only the function of positioning the apparatus on the nose, while the temple portions and frame bear the load-bearing function, distributing weight away from the nose.
Solution Approach 2:
The load-bearing function is extracted from the nose pad member and transferred to the temple portions and head-mounted frame. This separates the positioning function (nose pad) from the support function (temple portions and frame), reducing nasal load.
2Manufacturing precision
If the display unit is positioned close to the eye for visual recognition, then image visibility is improved, but the apparatus may contact the ear causing discomfort
Solution Approach 1:
The supporting part employs asymmetric design with a longer arm extending toward the temple portion and a shorter arm toward the ear area. This asymmetric configuration positions the display unit optimally for visual recognition while maintaining clearance from the ear to prevent discomfort.
Solution Approach 2:
The supporting part utilizes three-dimensional spatial arrangement with arms extending in different directions and lengths. By adjusting the spatial configuration and arm lengths, the display unit is positioned in optimal visual range while maintaining clearance from the ear through vertical and depth dimension adjustments.
3Ease of operation
If the supporting part is made adjustable for positioning, then visual recognition is improved, but the device complexity increases
Solution Approach 1:
The supporting part incorporates rotatable joints at the connection between the arm and the frame, enabling dynamic adjustment of the display unit's position and angle. This rotational degree of freedom allows users to adapt the apparatus to different visual requirements while maintaining a relatively simple mechanical structure.
Data Source
AI summary
An image display apparatus includes a frame along a head of an observer, a display unit that displays an image that can be visually recognized by the observer, and a supporting part attached to the frame and supporting the display unit, wherein the frame is fixed to a position in which the image displayed by the display unit connected to the frame via the supporting part is visually recognized by the observer.