Optical lens is an indispensable part of machine vision system, which directly affects the quality of imaging and the realization and effect of algorithm. Optical lens can be divided into short lens, medium lens and long lens in terms of focal length. From the size of the field of view can be divided into wide Angle, standard, telephoto lens; The structure is divided into fixed light focus lens, manual
Optical zoom lens, automatic optical zoom lens, manual zoom lens, automatic zoom lens, automatic aperture electric zoom lens, electric three variable (aperture, focal length, focus are variable) lens, etc.
Optical lens r & d and manufacturing are located in the middle of the industrial chain, and the upstream is the equipment, instruments and raw materials needed for optical lens production. The raw materials mainly include glass lens, plastic lens, electronic parts, plastic raw materials, metal parts, etc. The downstream is the application field of optical lens, mainly including security monitoring equipment, mobile phone camera camera
Head module, car camera module, machine vision system, VR/AR equipment, etc.
From the perspective of the optical lens characteristics of the lens, the optical lens is mainly divided into three categories: plastic lens, glass lens and glass-plastic hybrid lens. Whether it is a plastic lens or a glass lens, the structure is composed of multiple lenses. In general, the more lenses you have, the more lenses you have
The higher the image quality. Plastic lens and glass lens because of the material properties, processing technology, light transmittance and other aspects are very different, so the final application range is also very different. Plastic lens is composed of optical plastic lens lens, due to strong plasticity, easy to make aspheric shape, convenient miniaturization
Features, widely used in mobile phones, digital cameras and other equipment. Glass lens is made of glass lens set up, because of the high requirements on molding technology, coating process, precision processing and other aspects and its characteristics of high light transmittance, it is more used in high-end image field, such as SLR cameras, high-end scanners and other equipment. glass
The plastic hybrid lens, which is composed of part glass lens and part plastic lens, combines the characteristics of the two and has the optical performance and stability of high refractive index. It is widely used in the lens modules of surveillance camera, digital camera and vehicle camera.
The downstream of optical lens industry is mainly divided into three types according to the product application field: security monitoring system manufacturers, mobile phone camera module manufacturers and car camera module manufacturers.
In the field of security video surveillance, the downstream of the lens industry is mainly for the manufacturers of security video surveillance equipment. With the continuous improvement of China's urbanization level, the comprehensive promotion of large-scale projects such as "safe city", "smart city" and "intelligent transportation", as well as the focus of governments at all levels and relevant departments on "strengthening the construction of public security prevention and control system", have provided a good policy environment for the development of China's security industry.
From 2010 to 2016, China's video surveillance market grew from 24.2 billion yuan to 96.2 billion yuan, with an average annual compound growth rate of 25.86%. By the end of 2017, the market size of China's video surveillance had exceeded 100 billion yuan. According to preliminary estimates, the market size of China's video surveillance reached 119.2 billion yuan in 2018, with a year-on-year growth of 12%.
2010-2018 China's video surveillance market scale
Mobile camera module has entered the fierce differentiation competition in recent years. With the widespread use of smart phones, the camera function has become the key to the competition among the major mobile phone manufacturers. Handset lens module manufacturers are also actively into the dual camera lens, wide Angle, ultra-thin, large aperture, optical anti-shake and other high-end areas of development, which is also on the middle of the light
Lens manufacturers put forward higher quality and craft requirements.
Shipments of camera modules from major manufacturers in 2017
In the field of vehicle electronics and other consumer electronics, the downstream of the lens industry is mainly for the manufacturers of vehicle camera modules. With the increasing requirements of road traffic safety and auto safety in Europe and the United States, as well as the rise of ADAS and future driverless car market, the manufacturers of on-board camera modules have ushered in a good development
Machine, also put forward higher quality requirements and shipment requirements for vehicle lens.
In recent years, China's vehicle-mounted lens industry is in the period of expansion, with rapid industrial development. In 2011, China's vehicle-mounted lens production capacity was 4 million pieces, and in 2015, it expanded to 18.8 million pieces. In the future, China's vehicle-mounted lens market will continue to expand and increase, driven by the explosion of ADAS (advanced driver assistance system) and Internet of vehicles
The long-term potential is huge.
To sum up, with the rapid rise of the terminal application product market, the development of the downstream industry has put forward higher requirements on the design level and precision production and processing capacity of optical lens. Meanwhile, the increasing market demand also provides a valuable opportunity for the sustainable and healthy development of the optical lens industry.