{
  "$type": "site.standard.document",
  "description": "A device comprising: a substrate (165; 171; 191; 201; 211; 231; 265; 271; 291; 301; 325; 351; 361; 377; 807) and a plurality of at least 1000 reflective flakes (163; 173; 193; 196; 205; 209; 214; 220; 236; 263; 273; 280a; 280b; 292; 302; 323; 333; 352; 362; 804) resting upon the substrate (165…",
  "path": "/patents/1014352",
  "publishedAt": "2011-04-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B41M3/148",
    "JDS UNIPHASE CORP [US]"
  ],
  "textContent": "A device comprising: a substrate (165; 171; 191; 201; 211; 231; 265; 271; 291; 301; 325; 351; 361; 377; 807) and a plurality of at least 1000 reflective flakes (163; 173; 193; 196; 205; 209; 214; 220; 236; 263; 273; 280a; 280b; 292; 302; 323; 333; 352; 362; 804) resting upon the substrate (165; 171; 191; 201; 211; 231; 265; 271; 291; 301; 325; 351; 361; 377; 807) and forming an image, characterized in that the reflective flakes include groups of flakes, wherein, in each group, the flakes are tilted at an angle with respect to the substrate, the angle being same for all the flakes in the group, and planes extending from surfaces (208; 303; 334) of the flakes (163; 173; 193; 196; 205; 209; 214; 220; 236; 263; 273; 280a; 280b; 292; 302; 323; 333; 352; 362; 804) intersect with one another, so that the group of flakes defines a ring or curve (R1, R2, Rn), and wherein the angle decreases or increases from the outermost ring or curve to the innermost ring or curve, so that the image appears to be a three-dimensional object having a bright or dark kinematic spot (192) which moves within the image when the device is tilted.",
  "title": "Dynamic appearance-changing optical devices (DACOD) printed in a shaped magnetic field including printable fresnel structures"
}