Transition Metal Complexes for Selective Visible Light Absorption
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Solution Overview
Problem
Current ophthalmic devices fail to effectively absorb high energy visible light, which can cause eye strain and disrupt circadian rhythms, while complete absorption of this light range may negatively impact vision, and there is a need for materials that provide targeted absorption of specific light wavelengths to protect the eyes and enhance visual comfort.
Innovation Solution
Development of compounds with visible light absorbing chromophores that absorb light within the 500 to 625 nm range, specifically designed for use in ophthalmic devices to improve vision quality and provide targeted protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If compounds absorb high energy visible light (500-625 nm) to protect eyes from strain and circadian disruption, then protection effectiveness is improved, but vision quality may be negatively affected due to blocking beneficial visible wavelengths
Solution Approach 1:
The patent applies local quality by designing compounds with specific chromophore structures (Formula I) that selectively absorb only in the 500-625 nm visible range while remaining transparent to other wavelengths. This targeted absorption approach allows the material to provide protection against HEV light without blocking beneficial visible light, thus maintaining vision quality while achieving protection effectiveness.
2Object-affected harmful factors
If compounds absorb UV radiation (280-380 nm) to protect cornea, then corneal protection is improved, but the criteria do not adequately address HEV light protection
Solution Approach 1:
The patent applies universality by developing compounds that simultaneously address multiple spectral ranges. The chromophores of Formula I are designed to absorb in the visible range (500-625 nm), complementing existing UV absorption capabilities. This multi-functional approach allows a single compound to contribute to both UV and HEV light protection, enhancing the overall versatility of ophthalmic devices.
3Ease of operation
If green-yellow light (550-600 nm) is blocked to enhance contrast and reduce glare, then visual comfort is improved, but too much absorption may reduce overall light transmission
Solution Approach 1:
The patent applies partial action by designing compounds that selectively absorb specific portions of the green-yellow spectrum (550-625 nm) rather than blocking all light in this range. The chromophore structures are tuned to provide targeted absorption that enhances contrast and reduces glare while maintaining sufficient overall light transmission for clear vision. This balanced approach optimizes visual comfort without excessively reducing light transmission.
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
These compounds enhance vision quality by absorbing specific wavelengths of visible light, reducing eye strain and glare, and promoting visual comfort without negatively affecting vision, while also offering protection against harmful radiation.
Implementation Method 1
compounds that absorb within the visible light portion of the electromagnetic spectrum, for example in the region of 500 to 625 nm
Data Source
AI summary
Described are visible light absorbing compounds. The compounds absorb various visible light wavelengths, such as in the region of 500 to 625 nm, and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices.