The lens is a structure that gathers light so that the photosensitive device can obtain a clear image, which directly affects the quality of imaging.
In 1812, Wollaston, a British physicist, invented a crescent lens with a group of one lens structure and the largest aperture F16, which is the earliest photographic lens in the world.
Since the first crescent camera lens came out in 1812, optical lens has gone through more than 200 years of development history.
The explosive changes in the lens industry have taken place in the past two years.
Driven by 5g and automatic driving, the camera industry has always been a market pursued by technology and capital. In order to pursue better imaging effect and expand wider application fields, the development of optical lens is a breakthrough.
From the analysis of the development trend of optical lens, there are two obvious changes: one is the upgrading and iteration of technology, such as the breakthrough of mobile phone lens to high-p, large aperture and ultra wide angle; The rise of glass plastic lens; Zoom lens market growth, etc. Second, more applications in subdivided fields have been implemented. In addition to the traditional mobile terminal, vehicle, security, artificial intelligence and AR / VR have become a must for lens businesses.
01
The development of mobile phone lens towards high P
At the beginning of the development of mobile phone lens, plastic lens was favored because of its low manufacturing difficulty, high production capacity, low cost and lightness. The initial mobile phone lens was only composed of 2-4 plastic lenses. However, with the continuous evolution of the market and the continuous guidance of the demand side, today's mobile phone lens has reached the level of 7p and 8p.
In the era when 8p lens has not been commercialized, daliguang, a giant optical lens company, has begun the research and development of 9p. In the future, the lens market will continue to develop towards high P, and the technology R & D competition among leading optical enterprises will become more and more intense.
02
Glass plastic lens will set a new industry benchmark
However, compared with plastic lenses, glass lenses with the same thickness have higher transmittance, refractive index and stability, which can better improve the shooting quality on the premise of controlling the lightness of the fuselage. As the technological level of plastic lens becomes more and more stable, mobile phone camera is also facing new challenges at the level of technological breakthrough.
Comparison of three lenses
Glass plastic hybrid lens can combine the advantages of glass lens and plastic lens, reduce lens thickness and distortion rate, and improve imaging clarity and aperture size. It has been widely used in monitoring and security, digital cameras, SLR cameras and other high-end mobile phone brand flagship machines.
Major lens manufacturers have encountered bottlenecks in 7p R & D. however, 1g5p glass plastic lens can achieve the same imaging effect as 7p lens. The application of glass plastic lens in mobile phones is expected to lead a new round of industry trend.
The world's first mobile phone equipped with WLG glass plastic hybrid lens redmi K40 game enhanced
Redmik40, the world's first mobile phone equipped with WLG glass plastic hybrid lens, was officially released on April 27. The mobile phone lens adopts 1g5p scheme (1 glass lens + 5 plastic lenses), which is provided by aacoptics (Chengrui Optics), the only subsidiary of Ruisheng technology in the world with WLG wafer level glass technology.
03
Large aperture and ultra wide angle of mobile phone lens have become a new trend
Aperture is a device used to control the amount of light passing through the lens and entering the light sensing surface in the fuselage. Generally speaking, the size of aperture is determined by the lens aperture and focal length.
The large aperture can realize the background virtualization, improve the shutter speed and effectively anti shake to capture the dynamic picture. The larger the aperture of the lens, the more light entering through this aperture per unit time, the richer the information obtained by the photosensitive element, and the better the effect of the final photo. When many manufacturers promote the photographing performance of a mobile phone, they often emphasize its camera pixels, aperture and other parameters.
Ultra wide angle lens has a wide field of vision, and unlike fish eye lens, it has strong distortion. It is a good lens to eliminate distortion. Ultra wide angle lens has the characteristics of strong sense of space depth, long depth of field and wide range of scene. The design difficulty of wide-angle lens is that the image edge will be distorted due to the influence of lens refraction. Therefore, it is necessary to optimize the optical design of more fine lens combination, adopt high-quality optical lenses, and process the lens imaging effect through later algorithms to achieve better wide-angle effect.
Similarly, with the continuous upgrading of the demand side, the mobile phone lens can continuously improve the shooting effect of the mobile phone lens through large aperture and ultra wide angle.
04
Zoom lens market penetration growth
With the development of voice and data communication technology, the remote video conference market has ushered in a large development space. The main reason is that the remote video conference can realize the synchronous communication of two-way video, voice and multimedia between point-to-point or multipoint, which has been widely recognized by users in the remote video industry. With the continuous expansion of the application field of video conference lens, the application demand of higher power lens will be replaced by zoom optical lens, so as to meet the imaging quality of remote video conference for multi person conference.
The traditional fixed focus lens can meet the basic needs of non magnification and 3x magnification lens, but under the background of the development of smart city, the demand of security for monitoring long-distance and large space scenes is increasing. Therefore, the application field of security lens will tend to focus on zoom optical lens, so as to meet the requirements of higher standards in the field of security.
05
The number of single cell phone lenses is gradually increasing
Number of cameras on a single machine
With the continuous upgrading of the demand side and the rapid development of the live broadcast and short video industry, the majority of users' demands for mobile phone lenses are increasing. Major mobile phone brand manufacturers are also constantly capturing the market demand and committed to improving mobile phone imaging ability and shooting effect.
In order to improve the imaging effect of mobile phones, the number of mobile phone cameras also accelerated. At present, several flagship machines are equipped with more than 7 lenses, such as Huawei p40pro +, which is equipped with 7 cameras (two in front and five in rear). The number of mobile phone cameras will continue to maintain a high growth trend, so as to meet the urgent demand of the market for products.
06
The number of single cars on board increased
The development of ADAS leads the upward trend in the number of lenses. In the external perception process of automatic driving system, visual perception plays a vital role, which is equivalent to the human visual system. Only by perceiving, can feedback be formed. The car camera now plays the role of human eyes. With the continuous iterative updating of automobile ADAS, the number of cameras carried by a car also needs to increase to meet the needs of new technologies.
Number of cameras equipped on main models of major automobile enterprises
According to the market data, the average number of cameras in global cars will increase from 0.99 in 2016 to 2.99 in 2023, with a compound annual growth rate of 17.11%. At the same time, according to the statistics of NXP, a major automotive electronics manufacturer, in order to achieve automatic driving above L2 + level, at least 6 on-board cameras are required. Compared with the configuration of 1-2 cameras carried at L1 level, we can see that with the continuous improvement of automatic driving level, the number of on-board cameras will also double. For example, Tesla's latest Model3 has been equipped with 8 cameras, and Xiaopeng P7, the main model of Xiaopeng, has also been equipped with 13 on-board cameras.
07
The demand for security lens is increasing
The market demand for security video surveillance covers a wide range. At present, it is mainly divided into two categories:
The first category is the engineering installation market, and its main customers include Scoreboard gun aiming manufacturer,Optical lens manufacturerParty and government organs at all levels, public security, finance, electric power, education, transportation, etc;
The second category is the consumer market, and the main customers include families, communities, shops, enterprises, vehicles, etc.
With the government's increasing efforts to lay the "Skynet" system and the continuous penetration of home cameras, the market demand in the field of security lens will continue to increase.
In the future, technological innovation and control of market segments will still determine the competitive advantage of the industry. In the security market, the optical lens field also maintains the same frequency trend. The development of 5g, AI, Internet of things and other new technologies has promoted security into a new technology application track, bringing a series of new innovative applications, Scoreboard gun aiming manufacturer,Optical lens manufacturer which will also bring favorable market development space for the development of security monitoring lens industry.
08
AI application growth
As a branch of artificial intelligence, machine vision can improve the production efficiency and intelligent automation level of manufacturing industry. As an important part of machine vision system, optical lens plays a key role in imaging quality. If the optical lens of machine vision can not reach the indexes of high resolution, high contrast and aberration, it will affect the imaging quality of machine vision and make it difficult for machine vision to simulate human visual function by computer. Therefore, Scoreboard gun aiming manufacturer,Optical lens manufacturer the maturity of the machine vision industry will stimulate the increased demand for industrialized and automated machine vision lenses.
Artificial intelligence and manufacturing
09
Growth of optical lens in VR / AR
Optical lens is one of the components of VR / AR hardware. Some VR / AR HMD devices take photos, position tracking and environment mapping through front camera; Some VR / AR HMDS use internal cameras to perceive the environment and surrounding targets. With the continuous development and application of VR / AR in many fields, the lens connecting with the outside world will also grow synchronously with the development of virtual reality technology.
ten
Japan monopolizes lens raw materials
In the development of modern technology, the material for manufacturing camera lens is the resin generated by adding special compounds to general petrochemical raw materials such as polyolefin and polycarbonate through special production processes. However, in the design of camera lens, Scoreboard gun aiming manufacturer,Optical lens manufacturer attention should be paid to avoid affecting the design freedom of mobile phone. Therefore, this resin must meet the requirements of thin molding, high transparency and easy molding.
Lens materials have very high requirements for production technology, and the special compounds added and production technology are the core technology. At present, the global lens material market is almost produced by several Japanese enterprises such as Mitsubishi Gas Chemical, Mitsui chemical and Zeon. Chinese manufacturers need to seek a breakthrough in the lens raw material market to avoid the situation of "neck sticking" of Chinese chips.
