公开(公告)号：DE602006002286D1

公开(公告)日：2008-10-02

申请号：DE602006002286

申请日：2006-02-20

Applicant: CANON KK ,  OSAKA PREFECTURE UNIVERSITY SA

Inventor： YAMADA MASAYUKI ,  KOTANI YOSHINORI ,  TANAKA HIROYUKI ,  OKUNO TAKEHARU ,  MINAMI TSUTOMU ,  TATSUMISAGO MASAHIRO ,  TADANAGA KIYOHARU

IPC: G02B1/11 ,  B32B3/30 ,  B32B9/00 ,  G02B1/111

Abstract: It is an object to provide an optical transparent member and a method of producing an optical member capable of maintaining a high-performance antireflection effect for a base over a long period of time, and an optical system using the same, specifically an optical transparent member including on a base 21 a layer 22 containing SiO 2 as a main component, a layer 23 containing Al 2 O 3 as a main component, and a plate crystal layer 24 formed from plate crystals containing Al 2 O 3 as a main component, wherein the surface of the plate crystal layer 24 has a shape of irregularities 25, and an optical system using the same.