Nose Pad Rotation Adjustment for Virtual-Image Display Fit
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Solution Overview
Problem
Existing virtual-image display devices with adjustable nose pads fail to provide easy and rapid adjustments to accommodate various nose shapes, particularly in applications where multiple users with different nasal structures require a comfortable fit.
Innovation Solution
A virtual-image display device equipped with a nose pad that features a rotation adjustment mechanism allowing axial rotation while restricting rotation at a predetermined position, enabling easy and rapid adjustment to fit different nose shapes by rotating and retaining the pad at an appropriate posture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the nose pad is made fixed and simple in structure, then the device complexity is reduced, but the adaptability to different nose shapes deteriorates
Solution Approach 1:
The nose pad is designed with a rotation adjustment mechanism that allows it to change its posture dynamically. The pad can rotate around an axis to adjust its angle relative to the supporting portion, enabling adaptation to different nose shapes and heights while maintaining a relatively simple overall structure.
2Adaptability or versatility
If the nose pad adjustment mechanism is made complex to accommodate various nose shapes, then the adaptability is improved, but the ease of operation deteriorates
Solution Approach 1:
The rotation adjustment mechanism enables dynamic posture change of the nose pad through simple rotation around an axis, allowing users to quickly adjust the pad's angle to match their nose shape without complex procedures.
Solution Approach 2:
The mechanism changes the positional parameter of the nose pad by allowing rotation to a predetermined angle, enabling rapid adjustment to different nose shapes through a single degree of freedom rotation rather than multiple adjustment steps.
3Ease of operation
If the nose pad allows free rotation, then the ease of operation is improved, but the stability of the adjusted position deteriorates
Solution Approach 1:
The mechanism provides controlled dynamics by allowing rotation during adjustment but restricting rotation at the adjusted position, enabling both ease of operation and stability of the final position.
Solution Approach 2:
The rotation restriction mechanism预先 (in advance) prevents unwanted rotation at the adjusted position, maintaining the stability of the posture that the user has set, while still allowing free rotation during the adjustment process.
Data Source
AI summary
A rotation adjustment mechanism SA is configured to allow a pad L, R, which is brought into contact with the nose of a viewer, to axially rotate to change its posture while restricting the axial rotation at a predetermined position. This configuration enables the nose pad to be positioned in place, in other words, enables the visual recognition position fin the virtual-image display device to be adjusted in an easy and rapid manner by a method of rotating the pad L, R and retaining it at an appropriate position, thereby meeting various requirements made by unspecified individuals such as making adjustment according to the shape of their own nose.