Progressive Lens Optical Blending for Patient-Specific Vision Zones
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Solution Overview
Problem
Existing progressive lens systems offer a limited selection of designs, restricting users to a set number of choices that may not fully meet their individual needs or preferences, leading to unusable vision areas and suboptimal performance.
Innovation Solution
An interactive lens design system that allows real-time generation and customization of progressive lens designs by blending pre-existing cornerstone designs based on user inputs, enabling users to tailor the lens optical design to their specific requirements through an interactive process, incorporating subjective feedback and displaying simulated optical effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a limited set of progressive lens designs is offered to users, then the device complexity is reduced and ease of manufacture is improved, but the adaptability to individual user needs deteriorates
Solution Approach 1:
The system dynamically generates customized progressive lens designs by blending multiple cornerstone designs in real-time based on user inputs, transforming the static selection process into a dynamic customization process that adapts to individual user needs without requiring pre-computation of all possible designs
Solution Approach 2:
The system changes the parameters of lens designs by adjusting the weighting factors in the blending formula, allowing continuous variation of optical characteristics such as corridor length, near vision zone size, and intermediate vision emphasis to match user requirements
2Manufacturing precision
If progressive lenses are designed with larger areas of useful vision and smaller areas of distorted vision, then the manufacturing precision is improved, but the transition speed between vision zones deteriorates
Solution Approach 1:
The system applies different quality characteristics to different regions of the lens by selectively emphasizing certain vision zones (near, intermediate, far) based on user needs, allowing each region to be optimized independently rather than applying uniform design criteria across the entire lens
3Ease of operation
If a fixed set of progressive lens designs is provided, then the ease of operation is improved, but the loss of information about user-specific requirements increases
Solution Approach 1:
The system incorporates user feedback through an interactive questionnaire that captures subjective preferences and lifestyle information, using this feedback to iteratively refine and customize the lens design parameters to better match user requirements
Data Source
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AI summary
Embodiments of the invention provide patients with premium progressive lenses that are tailor-made to his or her specific and unique requirements and preferences. An interactive progressive lens optical design determining provides design technology that allows patients or eye care professionals to alter a progressive lens optical design in real-time, while continually displaying the selected lens' optical performance, until the most suitable lens has been designed. The progressive lens optical design determining software mixes and blends a number of cornerstone designs in varying ratios to achieve the desired lens.