METHOD FOR PRODUCING PLATE FOR OPTICAL MEMBER, METHOD FOR PRODUCING ROLL PLATE FOR OPTICAL MEMBER, AND OPTICAL MEMBER

PROBLEM TO BE SOLVED: To provide a method for producing a plate for optical members, which plate can allow an accurate rugged part to be formed when an optical member having a rugged pattern is produced and can further allow a minute rugged part to be formed on at least a part of the surface of the...

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Bibliographische Detailangaben
Hauptverfasser: MOTONAMI KEITA, SADAHIRO TETSUYA, AOKI YOSUKE
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for producing a plate for optical members, which plate can allow an accurate rugged part to be formed when an optical member having a rugged pattern is produced and can further allow a minute rugged part to be formed on at least a part of the surface of the rugged pattern.SOLUTION: A method for producing an original plate comprises the steps of: exposing a substrate and a resist layer of a laminate, which has the resist layer and is used for producing the original plate; and removing the resist layer in an exposed portion or an unexposed portion to form a resist pattern. At the exposing step, the resist layer is exposed so that incident light on the resist layer is made to interfere with reflected light which the incident light reflects and returns to form a standing wave. A method for electroforming the original plate comprises the steps of: stacking an electroless plating layer on the resist pattern-formed surface by electroforming without etching the original plate; and stacking an electrolytic plating layer on the electroless plating layer.SELECTED DRAWING: Figure 2 【課題】凹凸パターンを有する光学部材を製造する際に、精度よい凹凸を形成することができるとともに当該凹凸パターンの表面の少なくとも一部にさらに微細な凹凸を形成することができる光学部材用版の製造方法を提供する。【解決手段】原版の作製は、基板、及びレジスト層を有する原版作製用積層体のレジスト層に対して露光する工程と、露光した部位又は露光しなかった部位におけるレジスト層を除去してレジストパターンとする工程と、を有し、露光をする工程では、レジストへの入射光と該入射光が反射して戻る反射光とを干渉させて定在波を形成させるように露光を行い、電鋳は、原版をエッチングすることなくレジストパターン側の面に無電解メッキ層を電鋳により積層する工程と、無電解メッキ層に電解メッキ層を積層させる工程と、を含む。【選択図】図2