Aspherical Spectacle Lens Simulation via Component Parameters
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Solution Overview
Problem
Conventional simulation systems for spectacles fail to precisely simulate the eye image observed when wearing aspherical lenses, leading to inaccuracies in eye scaling and potential leakage of technical information, especially when complex surface shapes are involved.
Innovation Solution
The system calculates the aspherical component parameter using spherical and correcting component parameters, allowing for precise simulation of eye image scaling without detailed aspherical surface data, and reduces the risk of technical information leakage by using only spherical and correcting component parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detailed aspherical surface data is used for simulation, then simulation precision is improved, but calculation time increases significantly and technical information leakage risk increases
Solution Approach 1:
The patent extracts only the essential aspherical component parameters from the complete aspherical surface data. Instead of using detailed surface shape information, the system separates and utilizes only the aspherical component parameters that are necessary for accurate eye image scaling simulation, thereby reducing data volume and calculation complexity while maintaining simulation precision.
Solution Approach 2:
The patent segments the aspherical lens parameters into distinct components: spherical component parameters and aspherical component parameters. This segmentation allows the system to process only the relevant aspherical components for simulation purposes, rather than handling all surface data, thus reducing calculation time while preserving accuracy.
2Measurement precision
If detailed aspherical surface data is used for simulation, then simulation precision is improved, but technical information leakage risk increases
Solution Approach 1:
The patent extracts and transmits only the aspherical component parameters to the simulation system, leaving the detailed aspherical surface shape data on the lens manufacturing side. This extraction approach ensures that simulation precision is maintained through accurate parameter transmission, while the risk of technical information leakage is minimized by not exposing the complete surface data.
3Productivity
If conventional spherical lens simulation method is used, then calculation time is reduced, but simulation precision deteriorates for aspherical lenses
Solution Approach 1:
The patent segments the lens parameters into spherical and aspherical components, allowing the system to apply efficient spherical lens simulation methods to the spherical components while adding only the necessary aspherical component adjustments. This segmentation enables faster calculation compared to complete aspherical surface processing, while maintaining accuracy for aspherical lenses.
Solution Approach 2:
The patent changes the approach from using complete surface geometry to using parameter-based representation. By transmitting and processing aspherical component parameters rather than detailed surface data, the system achieves both improved calculation efficiency and maintained simulation precision for aspherical lenses.
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
This approach enables a precise and efficient simulation of eye image scaling for aspherical lenses, reducing calculation time and minimizing the risk of technical information leakage, thereby enhancing customer satisfaction and operational efficiency.
Implementation Method 1
the eye looks smaller in case of a lens for myopia, and the eye looks larger in case of a lens for hyperopia, owing to refraction by a spectacle lens
Data Source
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AI summary
A simulation system for wearing spectacles, providing wearer with simulated experience of an eye image capable of being observed in time of wearing a spectacle lens, comprising, a simulation image generating means of generating a simulation image reflected with a scaling of the eye image capable of being observed in time of wearing the spectacle lens, based on an aspherical component parameter being a basis of the scaling of the eye image capable of being observed in time of wearing spectacles with at least one of optical surfaces aspherical.