Ophthalmic Filter Selection Using Multispectral Visual Environments

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing ophthalmic devices with solar lenses are not personalized to the wearer's activities, preferences, and characteristics, relying on theoretical data rather than actual visual environments and physiological needs.

Innovation Solution

A method using multispectral or hyper spectral data to select an optical filtration for ophthalmic devices, considering wearer preferences and visual environments, with an electrically commanded cell for dynamic filter application, and a system comprising sensors and a database for real-time filter adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If ophthalmic devices with solar lenses are chosen based on aesthetics and design, then the visual appeal and fashion trend compliance are improved, but the suitability of the filter for the wearer's visual and physiological characteristics, activities, and environmental factors deteriorates

Engineering Contradiction:

Improveaesthetic designVSAvoidfilter suitability

Core Design Contradiction:

ShapeVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic filter selection that adapts to the wearer's visual environment, activities, and spectral sensitivity in real-time. The system transitions from static, pre-determined filters to dynamic, context-aware filter selection, allowing the optical filtration to change based on environmental conditions and user needs.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the selection criteria from aesthetic parameters to functional parameters including spectral sensitivity, visual environment characteristics, and activity type. This parameter transformation enables the system to select filters based on scientific measurements rather than subjective design preferences.

Inventive Principle:

Principle #35Parameter changes

2Ease of manufacture

If ophthalmic devices use theoretical data for filter selection, then the manufacturing and implementation are simplified, but the adaptation to wearer's activities, preferences, and characteristics deteriorates

Engineering Contradiction:

Improvefilter implementationVSAvoidwearer-specific adaptation

Core Design Contradiction:

Ease of manufactureVSMeasurement precision

Solution Approach 1:

The patent replaces manual filter selection and theoretical data approaches with an automated system using sensors, spectrometers, and computer algorithms. This substitution of mechanical/manual processes with automated measurement and selection systems maintains ease of implementation while dramatically improving measurement precision and wearer-specific adaptation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-service filter selection by automatically measuring the wearer's spectral sensitivity, analyzing the visual environment, and selecting the appropriate filter without requiring expert intervention. This automates the previously manual process of matching filters to wearer characteristics.

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If multiple ophthalmic devices with different filters are provided for different activities, then the adaptability to various environments is improved, but the device complexity and number of components increases

Engineering Contradiction:

Improveenvironmental adaptationVSAvoidnumber of devices

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates a universal ophthalmic device that can perform multiple functions by dynamically selecting from multiple filter options based on the current environment and wearer needs. Instead of requiring separate devices for different activities, a single device with multi-filter capability and intelligent selection algorithms provides equivalent versatility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system transitions from static multiple devices to a dynamic single device that can change its optical properties in real-time. The ability to switch between different filters dynamically eliminates the need for multiple physical devices while maintaining adaptability across various environments.

Inventive Principle:

Principle #15Dynamics

4Loss of information

If filter selection is based on color gamut and visual appearance, then the visual preference matching is improved, but the spectral accuracy and scientific basis for selection deteriorates

Engineering Contradiction:

Improvevisual preferenceVSAvoidspectral accuracy

Core Design Contradiction:

Loss of informationVSMeasurement precision

Solution Approach 1:

The patent introduces spectral data and scientific measurements as an intermediary between the wearer's visual preferences and the filter selection. Rather than directly matching colors or appearances, the system uses spectral sensitivity measurements and environmental spectral analysis as intermediaries to make scientifically accurate selections that satisfy visual preferences.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP3422086B1Method for filter selection

Publication Date: 2026.05.06 ESSILOR INTERNATIONAL(COMPAGNIE GENERALE D OPTIQUE)

Figure 1A~1B
Figure 2A~2B
Figure 3A~3B

AI summary

The present invention relates to a method implemented by computer means of selecting an optical filtration of an ophthalmic device for a wearer, the method comprising: - obtaining wearer's preferences relatively to at least one predetermined type of visual environment comprising multispectral or hyper spectral data; - selecting at least one filter: * corresponding to said wearer's preferences relatively to said at least one predetermined type of visual environment, and * determined on the basis of said multispectral or hyper spectral data.