Invention Grant
US08367872B2 Close-bonded diffractive optical element, optical material used therefor, resin precursor, and resin precursor composition
有权
封闭衍射光学元件，用于其的光学材料，树脂前体和树脂前体组合物
- Patent Title: Close-bonded diffractive optical element, optical material used therefor, resin precursor, and resin precursor composition
- Patent Title (中): 封闭衍射光学元件，用于其的光学材料，树脂前体和树脂前体组合物
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Application No.: US11793523Application Date: 2005-12-20
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Publication No.: US08367872B2Publication Date: 2013-02-05
- Inventor: Akiko Miyakawa , Masayuki Shijo
- Applicant: Akiko Miyakawa , Masayuki Shijo
- Applicant Address: JP Tokyo
- Assignee: Nikon Corporation
- Current Assignee: Nikon Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2004-367607 20041220
- International Application: PCT/JP2005/023364 WO 20051220
- International Announcement: WO2006/068138 WO 20060629
- Main IPC: C07C319/00
- IPC: C07C319/00 ; C08F12/30 ; C08G75/04
Abstract:
To obtain a close-contact multi-layer type diffractive optical element having a homogeneous high-refractive-index and low-dispersion resin layer, an acrylate-terminated oligomer, obtained by allowing excess bifunctional acrylate to react with bifunctional thiol, is used as a resin precursor for the high-refractive-index and low-dispersion resin layer.
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