CLOSE-BONDED DIFFRACTIVE OPTICAL ELEMENT, OPTICAL MATERIAL USED THEREFOR, RESIN PRECURSOR, AND RESIN PRECURSOR COMPOSITION
申请人:NIKON CORPORATION
公开号:EP1830205A1
公开(公告)日:2007-09-05
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.
Close-Bonded Diffractive Optical Element, Optical Material Used Therefor, Resin Precursor, and Resin Precursor Composition
申请人:Miyakawa Akiko
公开号:US20080107903A1
公开(公告)日:2008-05-08
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.