发明名称 |
MICROLENS SHEETING WITH FLOATING IMAGE USING A SHAPE MEMORY MATERIAL |
摘要 |
A sheeting includes a layer of a shape-memory polymer material having a surface of microlenses, wherein each of the microlenses is associated with one of a plurality of images within the sheeting. The layer of the shape-memory polymer material is responsive to an external stimulus; e.g., temperature, solvent, or moisture; by transitioning from a first state in which an optical property of the microlenses has a first value to a second state in which the optical property of the microlenses has a second value. The microlenses have refractive surfaces that transmit light to positions within the sheeting to produce a composite image from the images formed within the sheeting when the layer of the shape-memory polymer material is in one of the first state and the second state. At least one of the images is a partially complete image, and each of the images is associated with a different one of the microlenses. |
申请公布号 |
CA2657244(C) |
申请公布日期 |
2015.06.30 |
申请号 |
CA20072657244 |
申请日期 |
2007.07.17 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
DUNN, DOUGLAS S.;MAZUREK, MIECZYSLAW H.;JONZA, JAMES M. |
分类号 |
G02B27/22;C08J5/18;C08L23/06;C08L45/00;C08L67/07;C08L75/04;C08L83/07;C08L101/12;G02B3/00 |
主分类号 |
G02B27/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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