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Title:
金型、光学素子、光学素子成形用の金型及びその製造方法
Document Type and Number:
Japanese Patent JP4158837
Kind Code:
B2
Abstract:
A metal mold for forming an optical device that while ensuring a light utilization efficiency required for optical device, attains suppressing of fluctuation among individual metal molds for use in the forming thereof; an optical device; and a process for manufacturing the metal mold for forming an optical device. The metal mold is one for forming an optical device with multiple orbicular zone structures, characterized in that the metal mold has a face having concentric multiple orbicular zone structures, and that each of the orbicular zone structures has a bottom face with given width in the radial direction of the orbicular zone structures, a side wall face and a flute connecting the bottom face with the side wall face, constructed of a curved surface of 0.5 to 2 µm radius of curvature.

Inventors:
藤本 章弘
大柳 泰介
Application Number:
JP2008505140A
Publication Date:
October 01, 2008
Filing Date:
September 05, 2007
Export Citation:
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Assignee:
コニカミノルタオプト株式会社
International Classes:
B29C33/42; B23B5/36; B29C33/38; G02B5/18; B29L11/00
Domestic Patent References:
JP2005219185A
JP2005219187A
JP2004021077A