Patent · US Active

Method and apparatus for structural coloration of metallic surfaces

US10167560B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

The Chinese University of Hong Kong · CN

Inventors

Ping Guo · Los Altos, US
Yang Yang · San Diego, US

Key dates

Filing date	Jul 7, 2017
Grant date	Jan 1, 2019
Priority date	—
Expiry date	Jul 7, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C22/57
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Materials for, and methods of, colorizing a metallic surface with micro-gratings using vibration cutting technologies are provided. Micro-gratings on aluminum, brass, and stainless steel surfaces can be rapidly created to effect, under illumination, at least one color observable in the visible spectrum using elliptical vibration texturing, a vibration-assisted mechanical cutting process. The modified metallic surface can display multiple visible colors, an iridescent effect caused by changes in one or more cutting parameters employed to produce the micro-gratings, the angle of illumination by an incident light, and/or the viewing angle of the surface under illumination.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.