Benzophenone Plastic Optical Component Blue Light Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing plastic optical components fail to maintain a high cutting ratio of blue light, especially when using specific benzophenone derivatives or benzotriazole compounds that decompose during radical polymerization, leading to reduced blue light absorption.
Innovation Solution
Incorporating a benzophenone compound of formula (1) into the plastic optical component, where R1 and R2 are C1-4 alkyl groups, in combination with an addition polymer obtained by radical polymerization, to achieve a cutting ratio of ≥ 50% at 410 nm and ≥ 70% light transmittance in the 400-700 nm range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a benzotriazole ultraviolet absorber is used to achieve high blue light blocking, then the cutting ratio of blue light improves, but the compound decomposes during radical polymerization causing the cutting ratio to decrease
Solution Approach 1:
The patent changes the chemical structure parameters of the UV absorber from benzotriazole to benzophenone with specific substituents (R1 and R2 as C1-4 alkyl groups). This structural parameter change makes the compound resistant to radical polymerization decomposition while maintaining high blue light absorption capability, achieving both improved reliability and harmful factor blocking.
Solution Approach 2:
The patent creates a composite optical material combining the specific benzophenone derivative with polymer components. This composite approach allows the UV absorber to function effectively within the polymer matrix without decomposing, resolving the contradiction between stability and blue light blocking performance.
2Object-affected harmful factors
If a benzophenone derivative is used to achieve high blue light cutting ratio, then the cutting ratio improves, but the compound decomposes during radical polymerization leading to reduced blue light absorption
Solution Approach 1:
The patent modifies the benzophenone structure by introducing specific alkyl substituents (R1 and R2 as C1-4 alkyl groups) and controlling the molecular structure parameters. These parameter changes enhance the compound's stability during radical polymerization while preserving its blue light absorption properties, achieving both high cutting ratio and composition stability.
3Object-affected harmful factors
If conventional UV absorbers are used to block blue light, then the cutting ratio improves, but the light transmittance in the visible range decreases
Solution Approach 1:
The patent applies local quality by designing the benzophenone molecule with specific functional groups positioned at particular locations (R1 and R2 substituents at specific positions). This localized structural design enables selective absorption in the blue light region (380-500 nm) while maintaining high transmittance in the visible range (400-700 nm), achieving wavelength-specific optical properties.
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 solution provides a stable and effective blue light cutting ratio, preventing decomposition of the benzophenone compound during polymerization, ensuring high blue light absorption and transparency in the optical component.
Implementation Method 1
the benzophenone compound... capable of absorbing radiation in the wavelength range of 340-450 nm
Implementation Method 2
an addition polymer obtained by radical polymerization of a monomer
Data Source
AI summary
Provided are a plastic optical component with a high cutting ratio of blue light, and a method for producing the plastic optical component. The plastic optical component includes a benzophenone compound represented by formula (1) and an addition polymer obtained by radical polymerization of a monomer. The method for producing the plastic member includes a step of curing a mixture including the monomer, the benzophenone compound represented by formula (1), and a radical initiator.