Aromatic Resin for High Refractive Index Lenses
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Solution Overview
Problem
Current optical materials with high refractive indices often compromise on transparency and Abbe's Number, making it challenging to produce thinner and lighter lenses with desired optical properties.
Innovation Solution
A resin with a novel structure, represented by Chemical Formula 1, is developed, which includes specific aryl and heteroaryl groups, and a method for preparing it by polymerizing a composition containing a compound represented by Chemical Formula 1a, a polyester precursor, or a polycarbonate precursor, enhancing both refractive index and transparency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the refractive index of an optical material is increased, then a thinner and lighter lens can be manufactured, but the Abbe's Number becomes low and transparency is compromised
Solution Approach 1:
The patent changes the chemical structure parameters of the resin by introducing specific aromatic rings (phenylene, naphthylene, carbazole groups) and adjusting molecular weight and glass transition temperature parameters to achieve both high refractive index and high transparency simultaneously
Solution Approach 2:
The patent creates a composite resin structure combining multiple functional groups (aromatic rings, carbonyl groups, hydroxyl groups) within a single polymer chain to achieve synergistic effects that simultaneously provide high refractive index and high transparency
2Length of moving object
If the refractive index of an optical material is increased, then a thinner and lighter lens can be manufactured, but the Abbe's Number becomes low
Solution Approach 1:
The patent optimizes the chemical structure parameters by selecting specific aromatic groups and controlling molecular weight and glass transition temperature to achieve the optimal balance between refractive index and Abbe's Number
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 resin achieves a high refractive index and high transparency, enabling the production of thin and light optical lenses with improved optical properties, such as reduced dispersion and increased sharpness, while maintaining a suitable Abbe's Number.
Implementation Method 1
The higher the refractive index of an optical material, the thinner the optical lens required to achieve the same level of correction
Implementation Method 2
polymerizing a composition for preparing a resin, which includes a compound represented by Chemical Formula 1a; and a polyester precursor or a polycarbonate precursor
Data Source
AI summary
The present application relates to a resin including a unit represented by Chemical Formula 1, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition.