摘要:
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.
摘要:
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.
摘要:
A method of manufacturing an optical element, comprising the steps of: preparing a mold having concave portions for molding a first resin into an optical member having a predetermined shape as well as a plate-like member having through-holes in at least a part thereof and being made of a second resin, and then disposing the plate-like member on the top surface of the mold so that at least one through-hole can face the concave portion of the mold; injecting a liquid precursor of the first resin into the space formed by the concave portion of the mold and the through-hole of the plate-like member so as to come into contact with at least a part of the plate-like member; polymerizing the liquid precursor while maintaining the contacting state of the liquid precursor with the plate-like member; and integratedly removing, from the mold, the plate-like member and the optical member made of the first resin which is the polymer of the liquid precursor, thereby to obtain an optical element.
摘要:
A method of manufacturing an optical element, comprising the steps of: preparing a mold having concave portions for molding a first resin into an optical member having a predetermined shape as well as a plate-like member having through-holes in at least a part thereof and being made of a second resin, and then disposing the plate-like member on the top surface of the mold so that at least one through-hole can face the concave portion of the mold; injecting a liquid precursor of the first resin into the space formed by the concave portion of the mold and the through-hole of the plate-like member so as to come into contact with at least a part of the plate-like member; polymerizing the liquid precursor while maintaining the contacting state of the liquid precursor with the plate-like member; and integratedly removing, from the mold, the plate-like member and the optical member made of the first resin which is the polymer of the liquid precursor, thereby to obtain an optical element.