Title:
LIGHT-BLOCKING MEMBER FOR USE IN OPTICAL EQUIPMENT
Document Type and Number:
Japanese Patent JP2011123255
Kind Code:
A
Abstract:
To provide a light-blocking member for use in optical equipment, a light-blocking member which is highly slidable, which has the properties of a light-blocking film such as light-blocking and matte properties, and which also excels in heat resistance and durability.
The light-blocking member 1 for use in optical equipment includes: a film substrate 2 and a light-blocking film 3 formed on at least one surface of the substrate. The light-blocking film 3 contains a binder resin, carbon black 31, a granular lubricant 32, and particulates 33. The binder resin content and the granular lubricant content are ≥70 wt.% and 5-15 wt.% respectively. The density of the granular lubricant 32 to be used is higher than the density of the particulates 33.
Inventors:
TAKAHASHI JUNKO
HARADA MASAHIRO
HARADA MASAHIRO
Application Number:
JP2009280363A
Publication Date:
June 23, 2011
Filing Date:
December 10, 2009
Export Citation:
Assignee:
KIMOTO KK
International Classes:
G02B5/00; G02B7/02; G03B9/00; G03B9/10
Foreign References:
WO2006016555A1 | 2006-02-16 |
Attorney, Agent or Firm:
Koichiro Okura
Patent Business Corporation Sannozaka Patent Office
Patent Business Corporation Sannozaka Patent Office
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