The black color of iPhone 13 looks a bit blue at some angles. The black iPhone 13 Pro will be a popular product because it will provide a more discreet look and feel. In addition to the black color of the iPhone 13 Pro models, the leaked information also suggests that Apple will introduce a new electronic stabilization system called "warp." This new technology will make room for features like subject tracking at all frame rates and resolutions.
In fact, in December, Apple was granted a patent for what it calls "anodized parts with a matte black appearance." According to the patent abstract, the component consists of a metal substrate and an anodized layer with randomly distributed micropores on the surface that absorb incoming light. The absorption effect of this surface is measured to ensure that the reflected brightness value does not exceed 10 (maximum 100) in the CIELab color space.
The patent states that the finish can be used on a variety of metals and metal alloys, including aluminum, titanium and steel. The finish includes an anodized layer that includes "randomly distributed light-absorbing features capable of absorbing visible light." This layer contains holes "into which color particles are injected." The resulting surface is a deep, deep matte black. True black is extremely difficult to achieve, and most commercial "black" products are actually dark gray or blue. The patent explains that "mere deposition of dye particles within the pores of the anodized layer is not sufficient to impart a true black color."