Contact Lens Repeating Wave Patterns for Natural Iris Appearance
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Solution Overview
Problem
Conventional tinted contact lenses have limitations in creating a natural appearance due to the small number of color layers, which restricts the ability to enhance eye color beyond simple color alteration.
Innovation Solution
The use of repeating wave patterns derived from trigonometric, Fourier, or polynomial functions on contact lenses, with pigmented lines of varying thickness and spacing, creates a natural appearance by adding shading and depth, enhancing the iris's appearance without an unnatural look.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional tinted contact lenses use multiple color layers to enhance eye color, then the color enhancement effect is improved, but the natural appearance is compromised due to artificial color layering
Solution Approach 1:
The contact lens incorporates multiple thin color layers (first color layer, second color layer, third color layer) with different opacities and color characteristics. Each layer is segmented to provide specific color enhancement functions, allowing natural-looking multi-tonal iris patterns without artificial uniform coloring.
Solution Approach 2:
Different regions of the contact lens have different color properties - the first color layer has higher opacity for structural definition, the second layer has medium opacity for color enhancement, and the third layer has lower opacity for natural blending. This local differentiation creates natural appearance variations.
2Device complexity
If conventional contact lenses use limited number of color layers, then the manufacturing complexity is reduced, but the ability to create natural appearing iris patterns is limited
Solution Approach 1:
The color enhancement is divided into three distinct layers, each with specific optical properties. This segmentation allows complex natural patterns to be created through the interaction of multiple layers rather than requiring a single complex layer or multiple opaque layers.
Solution Approach 2:
The contact lens uses composite material structures with different opacity levels and color characteristics combined in specific layers. This composite approach enables natural appearing iris patterns by combining the advantages of different material properties in a hierarchical structure.
3Ease of manufacture
If conventional tinted lenses use opaque colors to change eye color, then the color transformation effect is improved, but the natural appearance is compromised
Solution Approach 1:
The color transformation is segmented across multiple layers with different opacity levels. The first layer provides structural definition with higher opacity, while subsequent layers progressively blend more transparently, creating natural color transitions rather than uniform opaque coloring.
Solution Approach 2:
Instead of using fully opaque colors throughout, the patent applies partial opacity at different levels. The first color layer uses higher opacity for definition, while the second and third layers use progressively lower opacity to maintain natural translucency and blending, avoiding the artificial look of complete opacity.
Data Source
AI summary
An ophthalmic lens incorporating a repeating periodic wavelike pattern of pigmented lines is utilized to highlight, shade and expose the iris of the wearer to create an enhanced look without affecting the natural appearance of the iris. The ophthalmic lens incorporates the repeating periodic wavelike pattern of pigmented lines in a region corresponding to the wearer's iris.