Invention Grant
- Patent Title: Apparatus and method for producing optical sheeting
- Patent Title (中): 用于生产光学薄片的装置和方法
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Application No.: US13059498Application Date: 2009-08-19
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Publication No.: US08728360B2Publication Date: 2014-05-20
- Inventor: Ikuo Mimura , Chihiro Hayashi , Akihiro Mathuda , Hiroshi Hamada , Naotake Osaki
- Applicant: Ikuo Mimura , Chihiro Hayashi , Akihiro Mathuda , Hiroshi Hamada , Naotake Osaki
- Applicant Address: JP Tokyo
- Assignee: Nippon Carbide Industries Co., Inc.
- Current Assignee: Nippon Carbide Industries Co., Inc.
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2008-211968 20080820; JP2009-134646 20090604; JP2009-169858 20090721
- International Application: PCT/JP2009/003958 WO 20090819
- International Announcement: WO2010/021133 WO 20100225
- Main IPC: B29D7/01
- IPC: B29D7/01

Abstract:
[Object] An apparatus and a method for producing optical sheeting with which increased productivity can be achieved while maintaining the accuracy of produced optical sheeting.[Solution]An apparatus 1 for producing optical sheeting includes: a first rotating roll R1 configured to be heated; a second rotating roll R2; a first belt mold S1 that has molds for optical elements on a surface thereof, and is configured to turn around the first rotating roll and the second rotating roll; a sheet feeding means D2 configured to feed synthetic resin sheeting onto a surface of the first belt mold S1, a second belt mold S2 configured to be pressed against the first belt mold S1 and to turn with the turning of the first belt mold S1; and at least two pressure rolls R3 and R5 around which the second belt mold S2 is mounted and which is configured to press the second belt mold S2 against the first belt mold S1, wherein the pressure roll R5 is arranged at a position where the second belt mold S2 comes away from the first belt mold S1 and cooled at a surface thereof.
Public/Granted literature
- US20110227238A1 APPARATUS AND METHOD FOR PRODUCING OPTICAL SHEETING Public/Granted day:2011-09-22
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