Liquid Crystal Vision Therapy Apparatus
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Solution Overview
Problem
Conventional vision-therapy apparatuses require multiple custom-made light filtering boards and adjustable eyeglass frames to accommodate different patients' eye spacings and vision conditions, making them impractical for widespread use.
Innovation Solution
An electronic vision-therapy apparatus using a frame with a lens module comprising liquid crystal lenses and a control unit that generates and adjusts a light filtering pattern electronically, allowing for customizable light polarization and refractive effects without the need for multiple physical lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple custom-made light filtering boards are manufactured for each patient, then the vision therapy can be tailored to individual vision conditions, but the manufacturing complexity and cost increase significantly
Solution Approach 1:
The patent uses a liquid crystal display panel that can dynamically change its light filtering pattern based on control signals. Instead of manufacturing different physical boards for each patient, the system electronically generates and displays customized light filtering patterns, allowing the same apparatus to adapt to various vision conditions without physical reconfiguration
Solution Approach 2:
The patent replaces the mechanical system of physical light filtering boards with an electronic display system. The liquid crystal display panel electronically generates light filtering patterns, substituting the need for manufacturing and mounting different physical optical components for each patient
2Adaptability or versatility
If the eyeglass frame is made adjustable to accommodate different pupil spacings, then the apparatus can fit various patients, but the device complexity increases
Solution Approach 1:
The patent employs a liquid crystal display panel that can dynamically adjust the position and configuration of light filtering patterns in response to control signals. This electronic adaptability allows the system to accommodate different pupil spacings without requiring mechanical adjustment mechanisms in the eyeglass frame
3Ease of manufacture
If a single apparatus is used for all patients, then manufacturing costs decrease, but the ability to provide personalized vision therapy is reduced
Solution Approach 1:
The patent creates a universal apparatus that can provide personalized vision therapy for different patients through electronic control. The liquid crystal display panel can generate various light filtering patterns programmatically, allowing a single apparatus to perform multiple customization functions without requiring different physical components for each patient type
Solution Approach 2:
The patent changes the optical parameters of the light filtering pattern electronically through the liquid crystal display panel. By controlling the liquid crystal molecules' orientation via electrical signals, the system can alter light transmission properties, pattern geometry, and filter characteristics to match individual patient vision conditions without physical manufacturing changes
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 a single apparatus to accommodate various vision conditions by dynamically generating light filtering patterns, reducing manufacturing costs and improving therapeutic effectiveness with adjustable light focusing for patients.
Implementation Method 1
The control unit configures a part of the first liquid crystal lens that corresponds to the opaque part of the light filtering pattern to allow only light having a first polarization to pass therethrough, and configures a part of the second liquid crystal lens that corresponds to the opaque part of the light filtering pattern to allow only light having a second polarization to pass therethrough
Implementation Method 2
The lens module is mounted on the frame, and includes first and second liquid crystal lenses that are disposed one behind the other
Data Source
AI summary
An electronic vision-therapy apparatus includes a frame, a lens module and a control unit. The lens module includes first and second liquid crystal lenses. The control unit is for controlling the first and second liquid crystal lenses to cooperatively generate and display a light filtering pattern. The light filtering pattern has an opaque part and a plurality of transparent parts. The control unit configures a part of the first liquid crystal lens that corresponds to the opaque part to allow only light having a first polarization to pass therethrough, and configures a part of the second liquid crystal lens that corresponds to the opaque part to allow only light having a second polarization orthogonal to the first polarization to pass therethrough.