Before everyone who enjoys shouting that Apple has re-patented the circle comes out, I anticipate that the title is a simplification, focusing on the likely use that - maybe, one day, it can be, hopefully, ... - Apple uses in your MacBook, Mac mini, Mac Pro, etc.
What he patented is a system for anodizing aluminum, resulting in a dull black color, something that is not so easy to take the gun and shoot black paint on the metal.
According to Patently Apple, Apple has obtained a patent from the USPTO (US Patent and Trademark Office) for a matte black finish that absorbs notably light.
Called “Matte Black Appearance Anodized Part,” the finishing application that can be used on the iPhone, iPad, Apple Watch, and Apple desktop and laptop computers, details the characteristics and manufacturing process of the finish.
The proposed finish is an anodized layer that “randomly distributes elements that absorb light capable of neutralizing the visible light that reaches the surface”. The porous layer “mixed” with colored particles can be used on metals and alloys composed of aluminum, titanium and steel. By creating the anodized layer that can absorb visible light, Apple could offer a true black finish without glare.
It is important to note that this matte black finish is very complex on commercial products and most finishes end up being a very dark gray or blue or glossy black.
