Title:
MOLDING DIE FOR OPTICAL GLASS AND PRESS MOLDING METHOD OF OPTICAL GLASS USING THE SAME
Document Type and Number:
Japanese Patent JP2007269511
Kind Code:
A
Abstract:
To provide a molding die for optical glass which has excellent releasing property and durability and is suitable for a precision press molding method.
The molding die has a die base material and a protective film comprising one or more layers formed on the die base material and is a mold for forming the optical glass, wherein the most surface layer of the protective film contains at least one or more kinds of elements selected from an element group comprising Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu.
COPYRIGHT: (C)2008,JPO&INPIT
Inventors:
MIYAZAKI SUNAO
Application Number:
JP2006094271A
Publication Date:
October 18, 2007
Filing Date:
March 30, 2006
Export Citation:
Assignee:
ASAHI GLASS CO LTD
International Classes:
C03B11/00