The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 29, 2000

Filed:

Mar. 24, 1998
Applicant:
Inventors:

Yasuyuki Suzuki, Yashio, JP;

Takashi Sato, Soka, JP;

Masaharu Nishimoto, Koshigaya, JP;

Shinichi Yamamoto, Yashio, JP;

Assignee:

Somar Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428423 ; 428327 ; 428332 ; 428341 ; 428500 ;
Abstract

Disclosed is a novel anti-reflective film used for reducing the adverse influences of stray light within an optical instrument such as photographic cameras by attaching onto the inner walls of the instrument. The anti-reflective film consists of a substrate film of a synthetic resin and an anti-reflective coating layer formed on one surface of the substrate film by coating with a coating composition comprising (a) a synthetic resin as a binder to form the matrix phase of the coating layer, (b) particles of a synthetic resin having an average particle diameter in the range from 15 to 50 .mu.m dispersed in the matrix phase, and (c) particles of carbon having an average particle diameter not exceeding 2 .mu.m dispersed in the matrix phase.


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