Optical Filter Composition for Color Vision and Radiation Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical filters fail to effectively enhance or regulate chromatic and luminous aspects of color appearance for human vision, particularly for individuals with color vision deficiencies, and do not adequately address the need for eye protection from high-energy radiation.
Innovation Solution
Designing optical filters using a combination of narrow-band and broad-band absorbing dyes, incorporated into ophthalmic lenses or coatings, to achieve desired color perception modifications and radiation protection, utilizing an iterative method to optimize dye concentrations for specific transmittance and luminous properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing optical filters are used, then basic light transmission is achieved, but color vision enhancement and red-green separation are insufficient
Solution Approach 1:
The patent combines narrow-band absorbing dyes and broad-band absorbing dyes in specific proportions to create a composite optical filter that simultaneously achieves enhanced color vision, improved red-green separation, and maintained luminous transmittance. This composite approach resolves the contradiction by integrating multiple material properties to achieve both precision in color differentiation and reliability in overall performance.
Solution Approach 2:
The patent optimizes specific parameters including the proportion of narrow-band to broad-band dyes, peak absorption wavelengths, and luminous transmittance values to maximize color vision enhancement while maintaining adequate light transmission. By carefully adjusting these parameters, the filter achieves superior red-green separation without sacrificing overall visual performance.
2Measurement precision
If narrow-band absorbing dyes are used to enhance color separation, then red-green separation improves, but luminous transmittance decreases
Solution Approach 1:
The patent maintains luminous transmittance at or above 40% while achieving a red-green separation factor greater than 1.0 by carefully controlling the concentration and spectral properties of narrow-band dyes. This parameter optimization allows the filter to enhance color separation without excessively reducing overall light transmission.
Solution Approach 2:
By combining narrow-band dyes (for color separation) with broad-band dyes (for light transmission), the patent creates a composite filter that balances red-green separation enhancement with adequate luminous transmittance, resolving the trade-off between these two competing requirements.
3Use of energy by moving object
If broad-band absorbing dyes are used, then luminous transmittance is maintained, but color vision enhancement is reduced
Solution Approach 1:
The patent creates a synergistic composite filter where broad-band dyes provide the foundation for adequate luminous transmittance, while narrow-band dyes overlay selective absorption to enhance chromatic regulation and color vision. This composite structure allows both requirements to be satisfied simultaneously.
Solution Approach 2:
The filter applies different functional properties at different spectral regions: broad-band absorption provides general light transmission control, while narrow-band absorption provides selective color enhancement. This local differentiation of functional quality allows the filter to maintain overall transmittance while providing targeted chromatic regulation.
4Measurement precision
If optical filters are designed for color vision enhancement, then color perception improves, but protection from high-energy radiation may be compromised
Solution Approach 1:
The patent designs the optical filter to simultaneously perform multiple functions: enhancing color vision, providing red-green separation, maintaining luminous transmittance, and blocking high-energy radiation. By integrating these diverse functions into a single filter design, the patent resolves the contradiction between color enhancement and radiation protection.
Solution Approach 2:
The combination of narrow-band and broad-band absorbing dyes creates a composite structure that can selectively block harmful high-energy wavelengths while transmitting beneficial visible light for color vision enhancement. The broad-band component provides general radiation protection, while the narrow-band component enables color differentiation.
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
The filters enhance color vision by increasing red-green separation and provide effective protection from high-energy radiation, improving color perception and safety for individuals with color vision deficiencies.
Implementation Method 1
optical filters that provide regulation and/or enhancement of chromatic and luminous aspects of the color appearance of light as seen by human color vision
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention generally relates to optical filters that provide regulation and/or enhancement of chromatic and luminous aspects of the color appearance of light to human vision, generally to applications of such optical filters, to therapeutic applications of such optical filters, to industrial and safety applications of such optical filters when incorporated, for example, in radiation-protective eyewear, to methods of designing such optical filters, to methods of manufacturing such optical filters, and to designs and methods of incorporating such optical filters into apparatus including, for example, eyewear and illuminants.