Optical Filter Effect Calculation Method
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Solution Overview
Problem
Current methods for determining the effect of optical filters on the eye are complex, time-consuming, and expensive, making it difficult to compare and distinguish the effects of various filters, especially those with different light cutting profiles, such as blue-light blocking lenses, without conducting extensive experimental tests.
Innovation Solution
A method that calculates a value quantifying the effect of an optical filter on the eye using specific spectral features related to its transmittance, allowing for quick and efficient determination without the need for in vitro or in vivo tests, by providing a spectral feature of the filter and using a predetermined function based on experimental data to assess its impact on biological parameters like apoptosis rate reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If experimental tests are conducted to determine the effect of optical filters on the eye, then reliable values quantifying the effect can be obtained, but the process becomes complex, time-consuming, and expensive
Solution Approach 1:
The patent creates a computational model that replicates the biological response of eye cells to blue light exposure through optical filters. Instead of conducting physical experimental tests on each filter, the system uses a predetermined function based on spectral features (transmittance values at specific wavelengths) to calculate the effect on apoptosis rate. This computational copy replaces complex in vitro or in vivo experiments while maintaining reliable quantification of filter effects.
Solution Approach 2:
The patent replaces the mechanical/biological experimental system with a computational calculation system. The predetermined function, established through initial experimental data, substitutes for repeated physical testing. By inputting spectral features of optical filters into this function, the system calculates the effect on eye cell apoptosis without requiring actual biological experiments, thereby eliminating the complexity, time, and cost associated with experimental procedures.
2Measurement precision
If extensive experimental tests are performed to compare different optical filters, then accurate differentiation of filter effects is achieved, but the time and resources required increase significantly
Solution Approach 1:
The patent performs preliminary experimental tests to establish a predetermined function that captures the relationship between spectral features and biological effect. Once this function is established through initial experiments, it can be reused indefinitely for comparing different optical filters. This preliminary action eliminates the need to repeat experiments for each new filter, enabling rapid and precise comparison while maintaining measurement accuracy.
Solution Approach 2:
The patent identifies specific spectral parameters (transmittance values at key wavelengths within the blue light spectrum) that directly influence the biological effect. By focusing measurements on these critical parameters rather than conducting full-spectrum experimental tests, the system achieves precise differentiation of filter effects with minimal testing time. The predetermined function processes these key parameters to calculate the apoptosis rate effect efficiently.
3Object-affected harmful factors
If blue-light blocking filters are designed to block more blue light, then photoprotective effect increases, but transmittance in the visible range decreases
Solution Approach 1:
The patent applies local quality by targeting specific wavelength regions within the blue light spectrum (400-455 nm) rather than uniformly blocking all visible light. The predetermined function evaluates spectral features at specific wavelengths to determine the photoprotective effect, allowing optimization of filtering at harmful blue wavelengths while maintaining transmittance in other visible ranges. This enables differentiation of filters based on their localized spectral characteristics rather than overall transmittance.
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 simplified and reliable assessment of optical filters' effects on the eye, specifically for blue-light blocking lenses, by quantifying their photoprotective potency against blue light-induced damage, allowing for efficient comparison and differentiation of filters with varying spectral profiles.
Implementation Method 1
optical filter blocking at least partially the transmission of light over a predetermined wavelength range
Data Source
AI summary
The invention relates to a method for determining a value quantifying the effect of an optical filter on a parameter linked to an eye, this optical filter blocking at least partially the transmission of light over a predetermined wavelength range, comprising the following steps: a) at least one spectral feature of the optical filter related to the transmittance of this optical filter at at least one wavelength in said predetermined wavelength range is provided, b) the value quantifying the effect of the optical filter on said parameter is calculated as a function of said at least one spectral feature of the optical filter provided in step a).