Lens-Centric Spectacles Frame Design for Precise Lens Positioning
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Solution Overview
Problem
Traditional eyewear design focuses on frames first, which can constrain the optimal positioning and orientation of lenses, leading to visual discomfort and poor vision for wearers, especially with multifocal or progressive lenses.
Innovation Solution
A lens-centric approach is adopted, where frames are designed around optimized lenses based on individual wearer parameters using additive manufacturing techniques, incorporating 3D scanning and customization systems to ensure proper fit and orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If frames are selected first and lenses are made to fit the frame, then design freedom and frame diversity are improved, but lens positioning accuracy and optical performance deteriorate
Solution Approach 1:
The patent inverts the traditional eyewear design sequence by starting with lens parameters optimized for the wearer's vision needs and then designing frames to accommodate those lenses, rather than selecting frames first and adapting lenses to fit. This reversal ensures that optical performance requirements drive the frame design, resolving the contradiction between frame diversity and lens positioning accuracy
Solution Approach 2:
The patent performs preliminary optimization of lens parameters including optical center position, pantoscopic angle, and face form angle based on wearer-specific vision requirements before frame selection and design. This preliminary action establishes precise lens positioning requirements that guide subsequent frame design, ensuring optical performance is maintained while achieving frame diversity
2Ease of manufacture
If lenses are adapted to selected frames, then ease of manufacture and frame selection simplicity are improved, but visual comfort and optical performance deteriorate
Solution Approach 1:
The patent inverts the traditional manufacturing sequence by optimizing lens parameters first based on vision requirements, then designing frames to fit those optimized lenses. This ensures visual comfort is prioritized while maintaining manufacturing feasibility through systematic design processes
Solution Approach 2:
The patent systematically optimizes multiple lens parameters including optical center position, pantoscopic angle, and face form angle based on wearer-specific measurements and vision requirements. These parameter optimizations are performed before frame selection, ensuring that subsequent manufacturing processes work with pre-optimized specifications that guarantee visual comfort
3Productivity
If standard frames are used, then productivity and cost efficiency are improved, but lens positioning precision and wearer-specific optimization deteriorate
Solution Approach 1:
The patent performs preliminary optimization of lens parameters including optical center position, pantoscopic angle, and face form angle based on wearer-specific vision requirements before frame selection. This preliminary action creates precise positioning specifications that guide frame and lens integration, achieving high positioning precision while maintaining manufacturing efficiency through systematic design processes
Data Source
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AI summary
Described herein are methods and systems for customizing and personalizing eyewear. The methods and system consider optimal parameters for each wearer's personal visual situation and configures frames around them.