Article having a plurality of optical structures

Patent metadata

Field	Value
Publication number	US-9575229-B2
Application number	US-201615154533-A
Country	US
Kind code	B2
Filing date	May 13, 2016
Priority date	Mar 19, 2014
Publication date	Feb 21, 2017
Grant date	Feb 21, 2017

Abstract

An article has optical structures disposed on a base material element. The optical structures include lenticular lens structures and discrete coloring elements having distinct color regions. The lenticular lens structure has several lens layers. The lenticular lens structure may have any of a variety of cross-sectional shapes. The article has a different appearance when an observer views the article at various angles. The appearance may differ in terms of coloring scheme.

First claim

What is claimed is:

1. An article configured to be worn by a user, comprising:
a base material element; and
a plurality of optical structures, wherein an apparent color of the plurality of optical structures changes when the article is viewed from different angles, and wherein each optical structure comprises:
a discrete coloring element, wherein the discrete coloring element has a first side disposed against the base material element and a second side disposed opposite of the first side, and wherein each discrete coloring element includes at least two regions having different colors, and wherein the second side of the discrete coloring element has a non-circular shape,
a lenticular lens structure, the lenticular lens structure having a plurality of lens layers,
wherein a bottom most lens layer of the lenticular lens structure is disposed against the second side of the discrete coloring element, and
wherein a bottom surface of the bottom most lens layer of the lenticular lens structure has the non-circular shape of and is coextensive with the second side of the discrete coloring element.

2. The article of claim 1 , wherein each optical structure of the plurality of optical structures has a discrete coloring element width, a discrete coloring element length, and an optical structure height, and
wherein a first ratio of the discrete coloring element width to the optical structure height ranges from 2:1 to 1:2.

3. The article of claim 2 , wherein a second ratio of the discrete coloring element length to the optical structure height ranges from 2:1 to 1:2.

4. The article of claim 3 , wherein the second ratio is 1:1.

5. The article of claim 2 , wherein the first ratio is 1:1.

6. The article of claim 1 , wherein the non-circular shape has rounded corners.

7. The article of claim 1 , wherein the non-circular shape is a triangle.

8. The article of claim 1 , wherein each optical structure in the plurality of optical structures is approximately the same size and shape.

9. The article of claim 1 , wherein a size of any optical structure in the plurality of optical structures may be different from another optical structure in the plurality of optical structures.

10. An article having a base material element with at least one optical structure, the at least one optical structure further comprising:
a discrete coloring element having a non-circular shape and an element diameter, the discrete coloring element further having a first side and a second side opposite the first side, the discrete coloring element further having a plurality of colors; and
a lenticular lens structure, the lenticular lens structure having a plurality of lens layers and wherein a bottom most lens layer of the lenticular lens structure is disposed against the second side of the discrete coloring element, wherein the bottom most lens layer has a layer diameter, wherein the layer diameter is the same as the element diameter,
wherein the lenticular lens structure is substantially transparent;
wherein the discrete coloring element includes at least a first region and a second region,
wherein the first region has a first color, and the second region has a second color,
wherein the first color is different from the second color, and
wherein the apparent color of the discrete coloring element changes when the discrete coloring element is viewed from different angles through the lenticular lens structure.

11. The article of claim 10 , wherein a first optical structure extends continuously along a surface of the base material element, and
wherein a second optical structure is positioned parallel to the first optical structure, and
wherein a distance separates the first optical structure from the second optical structure.

12. The article of claim 11 , wherein the first optical structure and the second optical structures are lines.

13. The article of claim 12 , wherein the lines have a cross-sectional shape with rounded edges.

14. The article of claim 12 , wherein the lines have a triangular cross-sectional shape.

15. An optical structure for an article of clothing, the optical structure comprising:
a discrete coloring element, wherein the discrete coloring element has a first side positioned adjacent to a surface of the article of clothing and a second side opposite the first side; and
a lens structure disposed on the discrete coloring element and that extends to a height away from the discrete coloring element,
wherein the lens structure has a plurality of lens layers,
wherein a bottom most lens layer of the lens structure is disposed against the second side of the discrete coloring element,
wherein the bottom most lens layer has a layer perimeter that defines a shape of the lens structure,
wherein the layer perimeter is the same as an element perimeter,
wherein the lens structure is substantially transparent,

wherein the discrete coloring element includes at least two regions, wherein each region includes a single color, and wherein a first color of any one region is different from a second color of any other region, and
wherein the apparent color of the discrete coloring element changes when the discrete coloring element is viewed from different angles through the lens structure.

16. The optical structure of claim 15 , wherein the shape of the lens structure is one of an oval, a straight line, a wavy line, and a triangle.

17. The optical structure of claim 15 , wherein a ratio of a length of the optical structure to a height of the optical structure is 1:1.

18. The optical structure of claim 15 , wherein each lens layer of the plurality of lens layers comprises cured toner.

19. The optical structure of claim 18 , wherein the cured toner is see-through.

20. The optical structure of claim 19 , wherein a first region has a first color, and a second region has a second color, and
wherein the first color is different from the second color, and
wherein the apparent color of the discrete coloring element changes when the discrete coloring element is viewed from different angles due to the index of refraction of the lens structure.

Assignees

• Nike Inc

Inventors

• Liles Timothy K
• Miller Todd W

Classifications

• G02B27/06

  with moving picture effect · CPC title

• B29D11/0073

  Optical laminates · CPC title

• G02B1/12

  by surface treatment, e.g. by irradiation · CPC title

• A43B1/0072

  made at least partially of transparent or translucent materials · CPC title

• G02B30/27

  involving lenticular arrays · CPC title