Method for forming an optical interfering pattern on a surface of a metal substrate, and article having an optical interfering effect

摘要

An article having an optical interfering effect includes a metal substrate with a surface, and a pattern of micro-cavities formed on the surface of the metal substrate and exhibiting an optical interfering effect on the reflection of the pattern of the micro-cavities. Each of the micro-cavities is indented inwardly from the surface of the metal substrate, and has a concave cross-section. A method for forming the pattern of the micro-cavities on the surface of the metal substrate is also disclosed.