发明名称 |
Dynamic appearance-changing optical devices (DACOD) printed in a shaped magnetic field including printable fresnel structures |
摘要 |
A device includes a substrate and at least 1,000 flakes resting upon the substrate, each flake including a magnetic layer. The plurality of flakes are aligned so as to form a plurality of rings or curves, wherein within each ring or curve, flakes are tilted at a same angle with respect to the substrate and planes extending from surfaces of said flakes intersect with one another. The device provides a visible image of a single ring or curve when illuminated with a single light source, and three rings or curves are visible when three light sources illuminate the device. The device may be used as a printed light detector. |
申请公布号 |
US9257059(B2) |
申请公布日期 |
2016.02.09 |
申请号 |
US201213689110 |
申请日期 |
2012.11.29 |
申请人 |
VIAVI SOLUTIONS INC. |
发明人 |
Raksha Vladimir P.;Coombs Paul G.;Markantes Charles T.;Argoitia Alberto;Phillips Roger W. |
分类号 |
G09F3/03;G02B5/09;G02B26/02;B41M3/14;B42D25/29 |
主分类号 |
G09F3/03 |
代理机构 |
VLP Law Group LLP |
代理人 |
VLP Law Group LLP ;Cubert Jeremy A. |
主权项 |
1. A device comprising a substrate and a plurality of flakes comprising at least 1,000 flakes resting in a carrier upon the substrate,
wherein the plurality of flakes are magnetically aligned so as to form a plurality of adjacent rings, wherein within each ring of the plurality of adjacent rings, the plurality of flakes are tilted at a same angle with respect to the substrate and planes extending from surfaces of said plurality of flakes intersect with one another, and wherein the plurality of adjacent rings provide a visible image of a single reflected ring when illuminated with a single light source, and three reflected rings are visible when three light sources illuminate the plurality of adjacent rings. |
地址 |
Milpitas CA US |