公开(公告)号：US20240407880A1

公开(公告)日：2024-12-12

申请号：US18699892

申请日：2022-08-12

Applicant: TOPCON CORPORATION

Inventor： Takuro OKUBO ,  Takashi TAKAHASHI

IPC: A61B90/20 ,  G02B1/115 ,  G02B1/18 ,  G02B21/00

Abstract: The optical element for surgical microscopes having antifogging properties, antibacterial properties, and durability against autoclave treatment is provided, the optical element including a substrate, an antireflection coating arranged on the substrate, and an antifouling coating layer containing acrylic polymer arranged on the antireflection coating, in which C—H bonding of carbon of the end of the surface of the antifouling coating layer is substituted by C—OSi(OH)3 by a combustion chemical vapor deposition method. A method for production thereof includes steps of coating a solution containing alkoxysilane having an acrylic group on the antireflection coating so as to form the antifouling coating layer, and substituting C—H bonding of carbon of the end of the surface of the antifouling coating layer by C—OSi(OH)3 by a combustion chemical vapor deposition method using silane based gas.