Back to results
US 2025/0164675 A1Published application
Reflective structures
Assignee3M Innovative Properties Company
InventorsSusannah C. Clear, Travis L. Potts, Jincy Jose, Kenneth L. Smith, John M. DeSutter
Life of this patent
Estimating the term…
Abstract
The present disclosure is directed to reflective microstructures where at least part of the reflective surface of the microstructure is radially symmetric around a given axis. The disclosure is also directed to articles comprising the reflective microstructures.
Claims15
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 more elements
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.
4 more elements
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.
5 more elements
Dependencies are inferred from the claim text.