- 专利标题: Precision control of web material having micro-replicated lens array
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申请号: US13583887申请日: 2011-03-30
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公开(公告)号: US09977154B2公开(公告)日: 2018-05-22
- 发明人: David L. Hofeldt , Robert L. Brott , Daniel H. Carlson , James N. Dobbs , Andrzej P. Jaworski , Glen A. Jerry , John T. Strand , Michael J. Sykora , Karl K. Stensvad
- 申请人: David L. Hofeldt , Robert L. Brott , Daniel H. Carlson , James N. Dobbs , Andrzej P. Jaworski , Glen A. Jerry , John T. Strand , Michael J. Sykora , Karl K. Stensvad
- 申请人地址: US MN St. Paul
- 专利权人: 3M INNOVATIVE PROPERTIES COMPANY
- 当前专利权人: 3M INNOVATIVE PROPERTIES COMPANY
- 当前专利权人地址: US MN St. Paul
- 代理商 Scott A. Baum; Adrian L. Pishko; James A. Baker
- 国际申请: PCT/US2011/030419 WO 20110330
- 国际公布: WO2011/123485 WO 20111006
- 主分类号: B29C59/00
- IPC分类号: B29C59/00 ; G02B3/00 ; B29C59/02 ; B29C59/04 ; B29D11/00 ; B29C43/58
摘要:
A manufacturing system includes a sensing system that provides high-resolution feedback for web guiding and tension control. The system may be especially useful for web material that is manufactured to include micro-replicated structures with micron size scale. A micro-replication station forms a pattern of micro-replicated lenses on a web material. The sensing system illuminates a measurement area on the web material and detects an angular distribution of light exiting a set of the micro-replicated lenses within the first measurement area. A control system that adjusts at least one process control parameter of the transport system based on the detected angular distribution.