Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tadashi Hayashi0
Naoyuki Kawanishi0
Date of Patent
September 23, 2008
Patent Application Number
10839220
Date Filed
May 6, 2004
Patent Primary Examiner
Patent abstract
An antiglare film producing method of film production by surface embossing to polymer film is provided. The polymer film includes a support of triacetyl cellulose, and an anti-reflection layer overlaid thereon. An embossing roller is used for surface embossing to a front surface of the support or a surface of the anti-reflection layer. In the film producing method, the embossing roller is produced according to electrodischarge machining (EDM). A surface of the embossing roller has an arithmetic average roughness Ra of 0.3-1.0 micron, and has a protruding and retreating pattern with an average cycle length RSm of 5-30 microns.
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