Lens-lens barrel integrated black coating film and manufacturing process thereof

Abstract

The invention discloses a lens-lens barrel integrated black coating film. The lens-lens barrel integrated black coating film covers the surface of a lens barrel and comprises a three-layer film systemstructure, wherein the three-layer film system structure comprises a BlackA film layer, an Al2O3 film layer and a SiO2 film layer in sequence, the BlackA film layer is in contact with the lens barrel, the thickness of the BlackA film layer is 70-100 nm, the thickness of the Al2O3 film layer is 30-60 nm, and the thickness of the SiO2 film layer is 50-90 nm. The lens-lens barrel integrated black coating film can enable the color of a lens and the lens barrel to be basically consistent after being assembled, colour cast cannot generate, so that the aesthetic feeling and the using feel are greatly improved; and meanwhile, a manufacturing process of the lens-lens barrel integrated black coating film is simple and easy to popularize and use.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to an integral black coating of a lens barrel and a manufacturing process thereof. Background technique [0002] At present, smart phones have become the necessities of human beings, and their market size is quite large. When people use mobile phones, they also have higher and higher requirements for mobile phones. Not only do they require good performance and experience, but they also have higher requirements for the appearance of mobile phones . As we all know, the lens of the rear camera of all mobile phones is exposed to the outside, and the lens barrel is made of gray-black plastic material. After being assembled with the lens, there will be obvious chromatic aberration, which will affect the aesthetics of the mobile phone. [0003] In order to solve this problem, the current practice in the industry is to use conventional coating materials to coat a thin film on plastic o...

AI Technical Summary

Problems solved by technology

As we all know, the lenses of all mobile phone rear cameras and their lens barrels are exposed to the outside, and the lens barrels are made of gray-black plastic material, and there will be obvious chromatic aberration after being assembled with the lens, which will affect the aesthetics of the mobile phone

[0003] In order to solve this problem, the current practice in the industry is to use conventional coating materials to coat a thin film on plastic or glass substrates by vacuum evaporation coating, but it cannot achieve a complete black effect, and some reflected light has color cast problems.