METHOD FOR MANUFACTURING OPTICAL COMPONENT
To provide a method for manufacturing an optical component capable of obtaining a low birefringence optical component.SOLUTION: A method for manufacturing an optical component includes: a step of molding a molded body for the optical component comprising a resin (A) in a mold; a first heat treatment...
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| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a method for manufacturing an optical component capable of obtaining a low birefringence optical component.SOLUTION: A method for manufacturing an optical component includes: a step of molding a molded body for the optical component comprising a resin (A) in a mold; a first heat treatment step of heat treating the molded body for the optical component taken out of the mold; a gradual cooling step of gradually cooling the molded body for the optical component after the first heat treatment step; and a second heat treatment step of further heat treating the molded body for the optical component after the gradual cooling step. When the glass transition temperature of the resin (A) is Tg[°C], the heating temperature in the first heat treatment step is T1[°C], and the heating temperature in the second heat treatment step is T2[°C], the relations: Tg-15≤T1≤Tg-2 and T2≤Tg-20 are satisfied.SELECTED DRAWING: None
【課題】低複屈折の光学部品を得ることが可能な光学部品の製造方法を提供する。【解決手段】光学部品の製造方法であって、樹脂（Ａ）からなる光学部品用成形体を金型内に成形する工程と、上記金型から取り出した上記光学部品用成形体を熱処理する第１熱処理工程と、上記第１熱処理工程の後に、上記光学部品用成形体を徐冷する徐冷工程と、上記徐冷工程の後に、上記光学部品用成形体をさらに熱処理する第２熱処理工程と、を含み、上記樹脂（Ａ）のガラス転移温度をＴｇ［℃］とし、上記第１熱処理工程における加熱温度をＴ１［℃］とし、上記第２熱処理工程における加熱温度をＴ２［℃］としたとき、Ｔｇ−１５≦Ｔ１≦Ｔｇ−２およびＴ２≦Ｔｇ−２０の関係を満たす光学部品の製造方法。【選択図】なし |
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