The popularization of dual cameras has given rise to the demand for ultra-thin glass and infrared filters

With the continuous innovation and development of smartphones, consumers have increasingly high requirements for the camera function. In order to meet this market demand, many mobile phone manufacturers have started to equip their flagship products with dual camera systems. The application of this technology not only improves the photography performance of mobile phones, but also brings new opportunities and challenges to the related industry chain, especially with a significant increase in demand for ultra-thin glass and infrared filters. The advantages and market trends of dual camera technology first appeared on the iPhone 7 Plus in 2016, and then major brands followed suit. Compared to traditional single camera phones, dual cameras can achieve better depth perception, background blur effects, and higher quality video recording capabilities. In addition, dual cameras can also provide zoom function, allowing users to shoot from a long distance without losing image quality. With the increasing emphasis of consumers on the mobile phone photography experience, dual cameras have gradually become the standard configuration for high-end smartphones. The application and development of ultra-thin glass, also known as “ultra-thin electronic glass” or “ultra-thin cover glass”, is a high-strength, wear-resistant, and high transparency material with a thickness of less than 1 millimeter. Its main use in smartphones is to protect the camera module from external environmental influences such as dust, moisture, and impact. Due to the complexity and size limitations of the dual camera system, lighter and thinner glass is required to ensure the compactness and aesthetics of the entire device. Meanwhile, ultra-thin glass also needs to have good optical properties to reduce light reflection and scattering, thereby improving image quality. The role and challenges of infrared filters are crucial components used to filter out unwanted infrared rays and ensure the authenticity and accuracy of photo colors. In a dual camera system, one lens is typically used to capture black and white image data, while the other is responsible for color information. In this case, the role of infrared filters is particularly important because they can effectively separate different color channels, which is crucial for ultimately synthesizing a high-quality photo. However, producing infrared filters that meet the requirements is not an easy task and requires precise technical and process control, as well as strict material screening. The changes and impacts of the supply chain have led to a sharp increase in demand for ultra-thin glass and infrared filters as the dual camera market expands. This has led to many traditional glass manufacturing companies increasing their investment in ultra-thin glass, while also attracting new players to enter this field. At the same time, some companies that focus on special filters are also adjusting their production lines to better adapt to the new demands of the smartphone industry. In this process, technological innovation has become a key factor, especially in the development of materials with higher transmittance and better scratch resistance. Although there are already many smartphones on the market that use dual cameras, there is still a lot of room for development in this technology. It is expected that in the next few years, mobile phones with three or even more cameras will appear, which will further increase the requirements for accessories such as ultra-thin glass and infrared filters. Meanwhile, with the arrival of the 5G era, the functions of smart devices will become more diverse and powerful, which will further promote the development and upgrading of related industries.

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