Fluidic Phoropter With Tunable Prism for Objective Refraction
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Solution Overview
Problem
Existing methods for measuring and correcting refractive errors in children and animals are inaccurate and limited, and virtual reality and augmented reality systems fail to adjust for individual refractive errors, leading to discomfort and motion sickness.
Innovation Solution
A tunable prism system and fluidic phoropter system that uses adjustable fluidic lenses and prisms to correct refractive errors and convergence issues, utilizing artificial intelligence and cloud computing for automated adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional refraction measurement methods are used, then the process is simple, but the measurement precision is poor for children and animals who cannot communicate
Solution Approach 1:
The system uses objective refraction measurement technology that automatically measures refractive errors without requiring the patient's subjective response. The device performs measurement autonomously by analyzing eye movements and optical parameters, eliminating the need for children and animals to communicate their visual perception.
Solution Approach 2:
The patent replaces conventional subjective refraction methods with objective measurement systems that use sensors to detect eye movements, pupil responses, and optical characteristics. This substitution allows automated measurement without requiring patient cooperation or communication.
2Adaptability or versatility
If fixed lenses are used in VR/AR systems, then the device structure is simple, but it cannot correct individual refractive errors leading to discomfort
Solution Approach 1:
The system employs dynamically adjustable lenses that can change their optical properties in real-time based on individual refractive error measurements. The lenses transition from fixed to variable focal lengths, allowing adaptation to different vision conditions without requiring multiple physical lenses.
Solution Approach 2:
The patent utilizes changeable optical parameters such as focal length and refractive power that can be adjusted according to measured eye characteristics. By varying these parameters dynamically, the system corrects refractive errors for different users and conditions while maintaining a single lens structure.
3Measurement precision
If subjective refraction measurement is used, then the device complexity is low, but the measurement precision is inaccurate due to communication limitations
Solution Approach 1:
The system performs refraction measurement autonomously by detecting objective eye parameters such as eye movement, pupil response, and optical characteristics. This eliminates the need for patients to actively participate or communicate, making the process accessible to children and animals.
Solution Approach 2:
The patent introduces intermediate sensors and processing systems that indirectly measure refractive errors by analyzing physiological responses and optical parameters. These intermediaries translate physical eye characteristics into refractive error data without requiring direct patient input.
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
Provides accurate and dynamic correction of refractive errors and convergence problems, reducing discomfort in VR/AR use and enabling precise vision correction for children, animals, and adults.
Implementation Method 1
at least one fluidic lens disposed between the one or more eyes of the patient and the vision target or chart, the at least one fluidic lens having a chamber that receives a fluid therein
Implementation Method 2
a tilt of at least one of the first and second transparent plates is configured to be modified so as to adjust a prism diopter of the tunable prism
Data Source
AI summary
A tunable prism for vision correction of a patient and other applications is disclosed herein. The tunable prism includes a first transparent plate; a second transparent plate; and a transparent balloon, a transparent ball, a transparent gel, or a transparent bag filled with a transparent gel disposed between the first and second transparent plates. A tilt of at least one of the first and second transparent plates is configured to be modified so as to adjust a prism diopter of the tunable prism.