Dynamic Vision Correction Apparatus Using Electro-Wetting and Feedback
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Solution Overview
Problem
Current treatments for refractive errors such as myopia, hyperopia, and astigmatism do not provide a single solution for correcting vision problems, and existing technologies lack a method to dynamically adjust light focus for individual users based on their specific eyesight conditions.
Innovation Solution
A focus adjustable apparatus comprising a light modulation device, eye tracking device, and controller, which adjusts the emergent angle of light rays on a transparent substrate or display panel to form an in-focus image on the user's retina, using electro-wetting units or Fresnel lenses, based on user-specific eyesight data and distance, to correct refractive errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single vision correction treatment is applied, then one specific refractive error can be corrected, but it cannot address multiple types of refractive errors simultaneously
Solution Approach 1:
The patent implements a dynamic vision correction system that can adjust optical properties in real-time based on the user's specific refractive error type and degree. The system transitions from static, fixed correction to dynamic, adaptive correction by varying optical parameters such as refractive index, focal length, or lens curvature according to detected vision requirements, enabling a single device to address multiple refractive error types.
Solution Approach 2:
The invention changes optical parameters (refractive index, focal length, lens power) to correct different refractive errors. By adjusting these parameters based on user-specific vision data, the system can adapt to correct myopia, hyperopia, astigmatism, and presbyopia using the same underlying technology platform, thereby achieving versatility without proportionally increasing complexity.
2Ease of operation
If existing vision correction treatments are used, then refractive errors can be corrected, but they lack dynamic adjustment capability for individual users
Solution Approach 1:
The patent implements self-service functionality where the system automatically detects the user's refractive error characteristics and adjusts optical parameters without requiring manual intervention. The device autonomously measures vision parameters, processes the data, and configures the appropriate correction settings, making the system easy to operate while managing complexity through automation rather than manual controls.
Solution Approach 2:
The invention incorporates feedback mechanisms that continuously monitor the user's vision requirements and adjust the optical correction accordingly. Sensors detect refractive error parameters, and the system uses this feedback to dynamically modify lens properties or optical path characteristics, enabling automatic adaptation to individual users' needs without complex user interaction.
3Adaptability or versatility
If laser vision correction is applied, then multiple refractive errors can be corrected, but it is not a dynamic solution and requires surgical intervention
Solution Approach 1:
The patent replaces permanent surgical correction with a reversible optical system that uses adjustable optical elements (such as liquid crystal lenses, electro-optic materials, or deformable mirrors) to correct refractive errors. This substitution eliminates the need for invasive laser surgery while providing dynamic, adjustable correction that can be modified or removed at any time, making the treatment non-invasive and adaptable.
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
Enables dynamic focus adjustment to ensure clear vision for users with refractive errors by accurately refracting light according to individual eyesight conditions, effectively addressing the limitations of existing treatments.
Implementation Method 1
The light modulation device receives the sunlight and adjusts an emergent angle of the sunlight to refract the sunlight to a ceiling of a room
Data Source
AI summary
An aspect of the invention provides an electric curtain. The electric curtain includes a sunlight detector for obtaining light information of sunlight and a light modulation device capable of receiving the sunlight and for adjusting an emergent angle of the sunlight to refract the sunlight to a ceiling of a room.