PRECURSOR RESIN COMPOSITION AND OPTICAL ELEMENT

• Main Author: KOMORI KAZUNORI
• Format: Patent
• Language: English; Japanese
• Published: 27.05.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide a resin composition for forming an optical element for correcting chromatic aberration by combining a glass lens and a resin lens which has a high degree of freedom in optical design due to refraction index nd, Abbe number νd and secondary dispersion characteristics θgF after curing different from those of a conventional resin composition for forming an optical element, and an optical element using the resin composition for forming the optical element.SOLUTION: The precursor resin composition is a precursor resin composition for obtaining a UV curable resin used in production of an optical element having abnormal part dispersion characteristics. The precursor resin composition contains component A: bifunctional fluorine-containing acrylate and/or bifunctional fluorine-containing methacrylate, component B: bifunctional acrylate having a benzene ring and/or bifunctional methacrylate having a benzene ring; and component C: photopolymerization initiator.SELECTED DRAWING: Figure 1 【課題】ガラスレンズと樹脂レンズとを組み合わせることで色収差を補正する光学素子において、硬化後の屈折率ｎｄ及びアッベ数νｄ、２次分散特性θｇＦが従来の光学素子形成用樹脂組成物と異なることにより、光学設計においてより高い自由度を持たせることができる光学素子形成用樹脂組成物、及び当該光学素子形成用樹脂組成物を用いた光学素子を提供することを目的とする。【解決手段】本件発明に係る前駆体樹脂組成物は、異常部分分散特性を備えた光学素子の製造に用いるＵＶ硬化型樹脂を得るための前駆体樹脂組成物であって、前駆体樹脂組成物には、Ａ成分：２官能含フッ素アクリレート及び／又は２官能含フッ素メタクリレートと、Ｂ成分：ベンゼン環を有する２官能アクリレート及び／又はベンゼン環を有する２官能メタクリレートと、Ｃ成分：光重合開始剤とを含むことを特徴とする。【選択図】図１