Spectacle Lens Ring Structures for Reducing Adaptation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing spectacle lenses with ring-shaped structures having variable surface power can lead to adaptation or habituation effects for wearers, as the eye adapts to the consistent optical power distribution.
Innovation Solution
A spectacle lens design featuring a plurality of ring-shaped structures with uniform widths, where one or more of these structures have varying surface power, incorporating random components in the surface mean power variation along ring-shaped paths within the structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ring-shaped structures with variable surface power are used, then optical performance is improved, but adaptation or habituation effects occur for spectacle lens wearers
Solution Approach 1:
The patent applies local quality by varying the surface power within each ring-shaped structure to create non-uniform optical zones. Each ring contains regions of different optical powers that change locally across the ring's circumference, providing differentiated optical correction in different areas while maintaining overall optical performance and reducing adaptation effects.
Solution Approach 2:
The patent implements dynamics by ensuring that the surface power variation within ring-shaped structures creates dynamic optical effects that change with gaze direction and viewing angle. This dynamic characteristic prevents the eye from adapting to a static optical pattern, thereby reducing habituation effects while maintaining optical performance.
2Ease of operation
If uniform surface power distribution is used, then adaptation effects are minimized, but optical performance is reduced
Solution Approach 1:
The patent applies segmentation by dividing the spectacle lens into multiple ring-shaped structures with varying surface powers. This segmentation allows different regions of the lens to have optimized optical properties while collectively providing a non-uniform but comfortable visual experience that balances optical performance with reduced adaptation effects.
Solution Approach 2:
The patent uses composite optical design by combining multiple ring-shaped structures with different surface power characteristics into a single spectacle lens. This composite approach integrates varied optical powers in a unified lens system, achieving both improved optical performance and reduced adaptation effects through the synergistic arrangement of different optical zones.
Data Source
Figure 1~3
AI summary
The present invention relates to a spectacle lens comprising a plurality of ring-shaped structures, each ring-shaped structure having a uniform width, one ring-shaped structure or more ring-shaped structures of said plurality of ring-shaped structures each having a varying power, the spectacle lens being characterized in that a variation of a surface mean power comprises one random component or more random components, said variation being along a ring-shaped path within said one ring-shaped structure or along a ring-shaped path within a same ring-shaped structure of each of said more ring-shaped structures.