公开(公告)号：DE4413575B4

公开(公告)日：2005-09-29

申请号：DE4413575

申请日：1994-04-19

Applicant: OLYMPUS CORP TOKIO TOKYO

Inventor： KAMIHARA YASUHIRO ,  OHASHI HITOSHI ,  IMAMURA AYAMI

IPC: B29D11/00 ,  C03C15/00 ,  C03C17/06 ,  C03C17/25 ,  C03C17/32 ,  G02B3/02 ,  G02B5/18 ,  C03C17/245

Abstract: Methods of manufacturing optical elements such as diffraction type lenses, aspherical lenses and diffraction gratings are disclosed. Deposited on a glass substrate is a workpiece film made of a material which can be machined much more easily than the substrate. Then the workpiece film is machined to form a predetermined shape or contour therein. After forming the predetermined shape or contour in the workpiece film, the workpiece film and substrate are subjected to etching to duplicate the predetermined shape or contour formed in the workpiece film into the substrate.

公开(公告)号：EP1494053A4

公开(公告)日：2011-03-16

申请号：EP03715536

申请日：2003-03-27

Applicant: OLYMPUS CORP

Inventor： MIHARA SHINICHI ,  KONISHI HIROKAZU ,  WATANABE MASAHITO ,  ISHII ATSUJIRO ,  TAKEYAMA TETSUHIDE ,  IMAMURA AYAMI ,  HANZAWA TOYOHARU

IPC: G02B13/18 ,  G02B15/167 ,  G02B15/177 ,  G02B15/20

CPC classification number: G02B15/177 ,  G02B5/04