发明授权
- 专利标题： Dental articles including post-formable multilayer optical films
- 专利标题（中）： 牙科用品包括可成形的多层光学膜
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申请号： US10868572申请日： 2004-06-15
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公开(公告)号： US07077649B2公开(公告)日： 2006-07-18
- 发明人: Kathryn R. Bretscher , Sumita B. Mitra , Olester Benson, Jr. , James M. Jonza , William W. Merrill , Andrew J. Ouderkirk , Michael F. Weber , Janis R. Gust
- 申请人： Kathryn R. Bretscher , Sumita B. Mitra , Olester Benson, Jr. , James M. Jonza , William W. Merrill , Andrew J. Ouderkirk , Michael F. Weber , Janis R. Gust
- 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 Anna A. Kobilansky
- 主分类号： A61B1/24
- IPC分类号： A61B1/24 ; G02B5/30
摘要：
Dental articles including at least one optical surface formed of a multilayer optical film including layers of at least one strain-induced birefringent material are disclosed. The multilayer optical films included in the dental articles is preferably post-formed into desired non-planar shapes in manners that result in some deformation of the optical stack of the multilayer optical films. A variety of dental implements can be constructed with multilayer optical film including dental mirrors, light guides for use in connection with photo-curing dental materials, and matrix bands for use in molding photo-curing dental restoratives.