OPTICAL ELEMENT,申请号JP20030019049-传众专利搜索

OPTICAL ELEMENT

申请公布号：JP2004233438(A)

申请号：JP20030019049

申请日期：2003.01.28

申请公布日期：2004.08.19

申请人：

MATSUSHITA ELECTRIC IND CO LTD

发明人：KOKADO HIROSHI;MATSUZAKI MASAYUKI;HOTTA HISAYA;IGARASHI HISAMOTO;ISHIZUKA ATSUSHI

分类号：G02B1/10;B01J35/02;C03C17/34;G11B7/135;G11B7/22

主分类号：G02B1/10

摘要：<P>PROBLEM TO BE SOLVED: To provide an optical element whose durability is enhanced as compared to the conventional one. <P>SOLUTION: An objective lens 160 is provided with a base part 161 and a film part 162 which has a film of a plurality of layers and covers the base part 161, wherein the film part 162 is a film of a plurality of layers consisting of a light-transmissive surface layer film 162a arranged on the surface layer and a light-transmissive photo-catalyst film 162b covered with the surface layer film 162a and the surface layer film 162a has a communication part which communicates the base part 161 side to the opposite side of the base part 161 side and is not illustrated. <P>COPYRIGHT: (C)2004,JPO&NCIPI