发明申请
- 专利标题: MULTILAYER OPTICAL FILMS SUITABLE FOR BI-LEVEL INTERNAL PATTERNING
- 专利标题(中): 适用于双层内部图案的多层光学膜
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申请号: US13139848申请日: 2009-12-22
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公开(公告)号: US20110255167A1公开(公告)日: 2011-10-20
- 发明人: William Ward Merrill , Douglas S. Dunn , Przemyslaw P. Markowicz
- 申请人: William Ward Merrill , Douglas S. Dunn , Przemyslaw P. Markowicz
- 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
- 国际申请: PCT/US2009/069173 WO 20091222
- 主分类号: G02B5/28
- IPC分类号: G02B5/28 ; B01J19/08
摘要:
A reflective film includes a first optical stack that provides a first reflective characteristic and a second optical stack that provides a second reflective characteristic. The optical stacks also have first and second absorptive characteristics that are suitable to absorptively heat the respective stacks upon exposure to light including a write wavelength while maintaining the structural integrity of the stacks. The absorptive heating can change the first and second reflective characteristics to third and fourth reflective characteristics, respectively. A blocking layer that at least partially blocks light of the write wavelength may also be provided between the optical stacks to permit absorptive heating of any selected one of the optical stacks. The reflective characteristics of the optical stacks can thus be independently modified in any desired patterns by appropriate delivery of light beams that include the write wavelength.
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