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公开(公告)号：US5005719A
公开(公告)日：1991-04-09
申请号：US368200
申请日：1989-06-19
申请人： Roger W. Phillips , Vernon C. Spellman , Wayne L. Gossett , Marc A. Kamerling , Paul G. Coombs , David W. Todd , Steven A. Silver
发明人： Roger W. Phillips , Vernon C. Spellman , Wayne L. Gossett , Marc A. Kamerling , Paul G. Coombs , David W. Todd , Steven A. Silver
IPC分类号： B65D55/06
CPC分类号： B65D55/066
摘要： Tamper evident optical device comprising a substrate and a multi-layer taper evident splittable coating carried by the substrate. The coating has a release region formed therein. An adhesive is secured to the tamper evident coating.
摘要翻译： 防篡改的光学器件包括由衬底和由衬底承载的多层锥形可明显分裂的涂层。 涂层具有形成在其中的释放区域。 将粘合剂固定到防篡改涂层。
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公开(公告)号：US4840281A
公开(公告)日：1989-06-20
申请号：US147891
申请日：1988-01-25
CPC分类号： B65D55/026 , B65D55/066
摘要： Tamper evident optical device having at least first and second layers with a spacer layer therebetween and providing a desired optical property. A release layer is disposed between the first and second layers which permits the first and second layers to be separated from each other and to destroy the desired optical property.
摘要翻译： 具有至少第一和第二层的防篡改光学器件，其间具有间隔层，并提供期望的光学性质。 释放层设置在第一层和第二层之间，这允许第一层和第二层彼此分离并破坏所需的光学性质。
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3.发明授权
公开(公告)号：US4721217A
公开(公告)日：1988-01-26
申请号：US894320
申请日：1986-08-07
CPC分类号： B65D55/066 , Y10S206/807
摘要： Tamper evident optically variable device comprising an optically variable device having at least first and second layers with a spacer layer therebetween providing a color shift with change in viewing angle. A release layer is disposed between the first and second layers to permit the first and second layers to be separated from each other and to thereby destroy the optical shifting properties of the optically variable device.
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