Head-Mounted Display Lens Holders for Vision Correction Alignment
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Solution Overview
Problem
Existing head-mounted display devices face issues with assembly and alignment of vision correction lenses, leading to inefficiencies and reduced effectiveness when different users require different vision corrections.
Innovation Solution
The head-mounted display device features lens holders with pre-designed combining portions that accommodate lenses, maintaining gaps to prevent friction and light leakage, and allow easy assembly and alignment without user adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If users assemble vision correction lenses to the device themselves, then adaptability to different users is improved, but assembly alignment precision deteriorates
Solution Approach 1:
The device is segmented into modular components: a fixed lens holder assembly integrated into the device body, and separate interchangeable vision correction lenses. The lens holder contains pre-formed combining portions that segment the alignment function from the lens selection function, allowing users to choose different lenses while the system ensures precise alignment through the integrated holder design.
Solution Approach 2:
The lens holder acts as an intermediary component between the device body and the user-selected vision correction lenses. It provides pre-formed combining portions that mediate the connection, ensuring precise alignment and positioning regardless of which lens the user chooses to install, thus resolving the conflict between user adaptability and alignment precision.
2Manufacturing precision
If lens holders are integrated into the device body, then assembly alignment precision is improved, but device complexity increases
Solution Approach 1:
The lens holder and device body are merged into a single integrated assembly with pre-formed combining portions. This merging eliminates the need for separate alignment mechanisms and reduces the number of discrete parts, thereby improving assembly alignment precision while actually simplifying the overall device structure despite the integrated design.
3Ease of operation
If combining portions are pre-formed on lens holders, then ease of operation is improved, but manufacturing complexity increases
Solution Approach 1:
The combining portions are pre-formed on the lens holders during manufacturing, performing the alignment preparation action in advance. This preliminary action simplifies the user's installation process to merely inserting the lens, while the manufacturing complexity is consolidated into a single production step that creates permanent features on the lens holder rather than requiring complex assembly procedures.
Data Source
AI summary
A head-mounted display device includes a body, a first optical lens group, and a second optical lens group. The body has a first and second lens holders respectively used to accommodate a first and second lenses corresponding to both eyes. An inner wall of the first lens holder has two first combining portions. An inner wall of the second lens holder has two second combining portions. The first and second optical lens groups are installed in the body and respectively correspond to the first lens holder and the second lens holder. When the first lens is accommodated in the first lens holder, two third combining portions of the first lens are combined with the first combining portions, and a gap is maintained between the first lens and the first optical lens group. When the second lens is accommodated in the second lens holder, two fourth combining portions of the second lens are combined with the second combining portions, and a gap is maintained between the second lens and the second optical lens group.