Electrochromic Vision Aid Glasses for Macular Degeneration Resolution
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Solution Overview
Problem
Conventional augmented reality-based vision aid devices for patients with macular degeneration experience degraded image resolution due to varying illuminance levels, affecting the visibility and clarity of projected images.
Innovation Solution
An electrochromic module with a transparent insulating layer and electrochromic layers of specific patterns, adjustable by electric signals, is integrated into vision aid devices and glasses, allowing for dynamic adjustment of transmittance and reflectivity to maintain visibility and improve image resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional AR-based vision aid devices project images onto lenses, then vision loss areas are compensated, but image resolution is degraded when illuminance is low or external light is very high
Solution Approach 1:
The patent applies dynamics by making the lens properties adjustable through electrochromic layers that can dynamically change their optical characteristics (transmittance and reflectivity) in response to different illuminance conditions. The electrochromic layers transition between transparent and opaque states based on applied voltage, allowing the system to adapt to varying light environments and maintain optimal image resolution.
Solution Approach 2:
The patent implements parameter changes by modifying the transmittance and reflectivity parameters of the lens through electrochromic material properties. By controlling the electrochromic layers' optical parameters (switching between transparent and opaque states), the system optimizes image projection quality under different illuminance conditions, thereby improving image resolution.
2Measurement precision
If electrochromic layers are applied to adjust transmittance and reflectivity, then image resolution is improved, but device complexity increases
Solution Approach 1:
The patent applies merging by integrating multiple functional layers (first transparent electrode layer, second transparent electrode layer, transparent insulating layer, and electrochromic layers) into a unified electrochromic module that is embedded within the lens structure. This combination allows the system to achieve advanced optical control capabilities while maintaining a compact and integrated device architecture.
Solution Approach 2:
The patent implements universality by designing the electrochromic module to perform multiple functions simultaneously: it controls both transmittance and reflectivity, adapts to various illuminance conditions, and maintains image projection capability. This multi-functional approach reduces the need for separate components, thereby managing device complexity while improving image resolution.
3Ease of operation
If transparent electrode layers and insulating layers are laminated, then electrochromic layer control is enabled, but manufacturing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the electrochromic module into distinct functional layers (electrode layers, insulating layer, electrochromic layers) with specific roles. This segmentation enables independent optimization and control of each layer's properties, facilitating easier manufacturing and assembly while maintaining effective electrochromic control functionality.
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
The solution maintains external light visibility and enhances image resolution for users by adjusting transmittance and reflectivity based on electric signal intensity and pattern disposition, effectively addressing the issue of degraded image quality in varying light conditions.
Implementation Method 1
an electrochromic layer provided in a specific pattern on the transparent insulating layer and that is changed to be transparent or opaque by an electric signal applied between the first transparent electrode layer and the second transparent electrode layer
Data Source
AI summary
Disclosed are a vision aid device based on an electrochromic layer that maintains a visibility of light input from an outside and improves a resolution of an image projected to the eyes of a wearer, and vision aid glasses including the same.