Electrowetting Zoom Lens for Myopia Prevention
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Solution Overview
Problem
Current methods lack effective and convenient means to prevent myopia, which is often caused by prolonged near-object viewing leading to ciliary muscle fatigue and crystalline lens strain, as they do not allow for adequate relaxation of the eye's focusing muscles.
Innovation Solution
A wearable eyeglass with an electrowetting dual-liquid zoom lens assembly and a driving device that monitors the crystalline lens condition, adjusting the focal length in real-time to convert incident light into parallel light, thereby relaxing the ciliary muscle and preventing myopia.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional eyeglasses with fixed lenses are used, then the structure is simple and easy to manufacture, but they cannot adjust to different viewing distances, causing ciliary muscle fatigue and myopia
Solution Approach 1:
The patent applies dynamics by transforming the fixed lens into a dynamically adjustable lens. The electrowetting dual-liquid zoom lens assembly can change its focal length in real-time based on the user's viewing distance, allowing the eyeglass to adapt to different viewing conditions (near, intermediate, and far distances) without requiring multiple fixed lenses or complex mechanical adjustment mechanisms.
Solution Approach 2:
The patent replaces traditional mechanical lens adjustment mechanisms (such as moving lens elements or changing lens curvature mechanically) with an electrowetting-based system. By applying voltage to the dual-liquid assembly, the focal length is adjusted through electrical fields rather than mechanical movement, significantly simplifying the device structure while maintaining adaptability.
2Reliability
If the crystalline lens is continuously tightened for near-object viewing, then near vision is maintained, but the ciliary muscle becomes fatigued and myopia develops
Solution Approach 1:
The patent applies preliminary action by proactively adjusting the lens focal length before the ciliary muscle becomes fatigued. The system continuously monitors viewing distance and preemptively changes the lens power to match the required viewing distance, preventing the crystalline lens from remaining in a continuously tightened state and thereby preventing muscle fatigue and myopia development.
Solution Approach 2:
The patent implements feedback by continuously monitoring the user's viewing distance and using this information to automatically adjust the lens focal length. The driving device receives signals about the crystalline lens condition and viewing distance, then adjusts the electrowetting dual-liquid zoom lens assembly accordingly, creating a closed-loop system that maintains proper eye relaxation.
3Ease of operation
If existing prevention methods for myopia are used, then some awareness is provided, but effective and convenient prevention means are lacking
Solution Approach 1:
The patent applies self-service by making the eyeglass automatically adjust its own lens power based on real-time detection of viewing distance and crystalline lens condition. The system does not require manual intervention from the user to change lenses or adjust focus - it autonomously monitors and adjusts, providing both effective prevention and maximum convenience.
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 eyeglass effectively exercises the crystalline lens and ciliary muscle, reducing fatigue and preventing myopia by converting light to parallel light when the lens is in a tightened state, promoting eye health and preventing long-term vision issues.
Implementation Method 1
a lens of eyeglass comprising an electrowetting dual-liquid zoom lens assembly, the electrowetting dual-liquid zoom lens assembly comprising insulating liquid, conductive liquid and driving electrodes
Data Source
AI summary
The present disclosure relates to eyeglass and a method for adjusting incident light into eyes. The eyeglass include: a crystalline lens condition acquisition member configured to acquire a condition of a crystalline lens of a user who wears the eyeglass; a lens of eyeglass including an electrowetting dual-liquid zoom lens assembly, the electrowetting dual-liquid zoom lens assembly including insulating liquid and conductive liquid which are encapsulated and driving electrodes configured to apply a voltage to the insulating liquid and the conductive liquid; and a driving device coupled to the crystalline lens condition acquisition member and the driving electrodes and configured to adjust the voltage of the driving electrodes in the case where the crystalline lens is in a tightened condition so as to convert light transmitted through the eyeglass to parallel light.