Optical monomer and preparation method and application thereof

By introducing sulfur and sulfur heterocyclic structures into the optical monomer, the problem of the imbalance between refractive index and Abbe number in optical resin materials is solved, resulting in an optical monomer with high refractive index and suitable Abbe number, which is suitable for head-mounted devices and improves imaging quality and wearing comfort.

CN121895283APending Publication Date: 2026-04-21ZHUHAI MOJIE TECH CO LTD
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Patent Information

Application Number
CN202512034581.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

While pursuing high refractive index, existing optical resin materials have low Abbe numbers, resulting in insufficient image clarity. Furthermore, resin lenses are not wear-resistant, have long curing times, and affect production efficiency.

Method used

By introducing a large amount of sulfur into the optical monomer, the electron cloud density and polarizability are increased by utilizing thioether bonds, the rigidity is improved by introducing sulfur heterocyclic structures, and thiol groups are introduced at both ends of the molecule. The preparation methods include ring-opening reaction, nucleophilic substitution, ring-closing reaction, bromination and thiol generation, forming an optical monomer with high refractive index and suitable Abbe number.

Benefits of technology

It achieves high refractive index and suitable Abbe number of optical monomers, improves the structural strength and imaging quality of resin, is suitable for use in head-mounted devices, and provides a comfortable wearing experience.

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Abstract

The invention discloses an optical monomer and a preparation method and application thereof, the structural general formula of the optical monomer is shown in the specification, R is a sulfur-containing group, and the sulfur-containing group is selected from one of the following groups: C2-C5 alkyl substituted by at least two sulfur, phenyl substituted by two sulfur, biphenyl substituted by two sulfur and naphthyl substituted by two sulfur. According to the optical monomer provided by the invention, thioether bonds existing in molecules greatly increase the electron cloud density and polarizability in unit volume, and the refractive index of the optical monomer is improved; a sulfur heterocyclic structure in the optical monomer can effectively improve the rigidity of the whole compound and improve the toughness of molecules; thioether bonds do not have characteristic absorption in visible light and near-infrared regions, influence on dispersion of visible light is small, transparency of the whole compound can be improved, and the Abbe number of the optical monomer is increased; the sulfydryl groups at the two ends of the molecule in the optical monomer can be used as reactive functional groups to react with other active functional groups such as isocyanate groups.
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