Multi-Layer Lenticular Lens Structure for Dynamic Color Shifting
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Solution Overview
Problem
Current articles of footwear and apparel lack versatility in achieving dynamic patterns and designs on their surfaces, as existing optical structures do not effectively change appearance when viewed from different angles.
Innovation Solution
Incorporating a base material element with discrete coloring elements and a lenticular lens structure, where the lenticular lens structure has multiple lens layers with varying thickness and curvature, allowing the apparent color of the discrete coloring element to change when viewed from different angles due to the unique arrangement and curing intensities of the lens layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single-layer lenticular lens structure is used, then the manufacturing process is simple, but the visual effect and design versatility are limited
Solution Approach 1:
The lenticular lens structure is divided into multiple layers (first lenticular lens layer, second lenticular lens layer, third lenticular lens layer) instead of using a single layer. Each layer can be independently manufactured and then combined, allowing for complex optical effects while maintaining manufacturing feasibility through modular production
Solution Approach 2:
Multiple lenticular lens layers are stacked and nested together, with each layer containing lenticular lenses that work in combination with the others. The layers are positioned at different heights above the base material, creating a nested structure that produces enhanced visual effects and design versatility
2Adaptability or versatility
If multiple lenticular lens layers are stacked, then the visual effect and design versatility are improved, but the device complexity increases
Solution Approach 1:
Each lenticular lens layer serves multiple functions: it acts as an optical element for creating visual effects, provides structural support, and can be manufactured using the same printing and curing process. This multi-functionality reduces the need for additional specialized components, thereby managing complexity
3Reliability
If different curing intensities are applied to different lens layers, then the optical performance is optimized, but the manufacturing process complexity increases
Solution Approach 1:
Different curing intensities are applied to different lenticular lens layers based on their specific optical requirements. The first layer may receive a lower curing intensity to maintain flexibility, while subsequent layers receive higher intensities for greater rigidity and optical precision. This localized optimization of curing parameters enhances overall optical performance
Solution Approach 2:
The curing intensity parameter is varied across different lens layers to optimize optical performance. By controlling the energy input during curing, the refractive index, transparency, and structural integrity of each layer can be precisely tuned to achieve the desired visual effects
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration provides increased versatility in surface patterns and designs, offering a dynamic visual effect where the appearance of the article changes significantly when viewed from different angles, enhancing the visual appeal and design flexibility of footwear and apparel.
Implementation Method 1
The lenticular lens structure has a plurality of lens layers... The apparent color of the plurality of optical structures changes when the article is viewed from different angles
Data Source
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AI summary
An article having optical structures disposed on a base material element. Optical structures include lenticular lens structures and discrete coloring elements. Lenticular lens structure has several lens layers. The article has a different appearance when an observer views the article at various angles. The appearance may differ in terms of coloring scheme.