发明人：
CLEAR, SUSANNAH C. | POTTS, TRAVIS L. | JOSE, JINCY | SMITH, KENNETH L. | DESUTTER, JOHN M.
权利要求：
We claim:
1. A reflective article comprising: a substrate having a structured surface that extends along a reference plane, wherein the structured surface comprises at least one opaque structure, wherein the at least one structure comprises: a reflective surface configured to reflect radiation rays, wherein the reflected rays comprise either diverging rays or converging rays, wherein at least part of the reflective surface is radially symmetric around an axis that is normal to the reference plane, and wherein the reflective surface is the outer surface of the structure.
2. A reflective article comprising: a substrate having a structured surface that extends along a reference plane, wherein the structured surface comprises at least one opaque structure, wherein the at least one structure comprises: a reflective surface configured to reflect radiation rays, wherein the reflected rays comprise either diverging rays or converging rays, wherein at least part of the reflective surface is radially symmetric around an axis that is normal to the reference plane, wherein the reflective surface is the outer surface of the structure, wherein at least part of the radially symmetric reflective surface is convex along the curve formed by the intersection of a plane orthogonal to the reference plane and the portion of the surface that is radially symmetric.
3. A reflective article comprising: a substrate having a structured surface that extends along a reference plane, wherein the structured surface comprises at least one opaque structure, wherein the at least one structure comprises: a reflective surface configured to reflect radiation rays, wherein the reflected rays are diverging or converging, wherein at least part of the reflective surface is radially symmetric around an axis that is normal to the reference plane, wherein the structure is opaque, wherein the reflective surface is the outer surface of the structure,
wherein at least part of the radially symmetric reflective surface is concave along the curve formed by the intersection of a plane orthogonal to the reference plane and the portion of the surface that is radially symmetric.
4. A reflective article according to any of the preceding claims, wherein the structured surface comprises a plurality of opaque structures arranged in a repeating pattern, wherein the pattern is a hexagon having a structure with its axis of symmetry located on each vertex of the hexagon and at the centroid of the hexagon.
5. A reflective article according to any of the preceding claims, wherein the reflective surface reflects from 75% to 100% of the incident rays in a specular manner in one or more of the following ranges: near infrared, visible, and ultraviolet spectra.
6. A reflective article according to any of the preceding claims, wherein the substrate comprises one or more polymers chosen from acrylic polymers, polycarbonate polymers, and polyurethane polymers.
7. A reflective article according to any of the preceding claims, wherein the reflective surface comprises one or more materials chosen from aluminum, silver, dichroic fdm, and combinations thereof.
8. A reflective article according to any of the preceding claims, wherein the reflective surface is a layer immediately adjacent to the substrate forming the structure.
9. A reflective article according to any of the preceding claims, wherein the substrate comprises microreplicated structures.
10. A reflective article according to any of the preceding claims, wherein each structure has a height and a radius, wherein the height is defined by the distance from the reference plane to the point where the axis of symmetry intersects the radially symmetric surface, and wherein the radius is defined by the average distance from an origin to the line formed by the intersection of the reference plane with the portion of the structure that is radially symmetric, wherein the origin is at the intersection of the axis of symmetry and the reference plane, wherein the height ranges from 100 microns to 200 microns.
11. A reflective article according to any of the preceding claims, wherein in at least one structure the reflective surface extends from 10% to 80% of the entire surface of the structure.
12. A reflective article according to any of the preceding claims, wherein at least one structure further comprises a clear layer
13. A reflective article according to any of the preceding claims, wherein at least one structure further comprises a clear layer, and wherein the clear layer comprises one of more of crosslinked acrylic, crosslinked urethane acrylic, fluoropolymer, fluoro-acrylate, and silicone polymers.
14. A reflective article according to any of the preceding claims, wherein the article further comprises an adhesive layer.
15. A system comprising a reflective article according to any of the preceding claims and a light source.