Three-dimensional image fingerprint sensor comes out in CMOS
A few days ago, researchers at the University of California at Davis and the University of California at Berkeley developed an ultrasonic fingerprint sensor based on MEMS and CMOS technology that can capture three-dimensional images of fingerprints, which will greatly enhance the security of fingerprint recognition. Fingerprint sensors are increasingly being used in devices such as smartphones. The use of fingerprints for unlocking and paying functions has greatly improved security over traditional passwords. The previous fingerprint recognition is a two-dimensional image extracted by the sensor, and the fingerprint authentication can be bypassed by printing the fingerprint pattern. The extraction of 3D images will undoubtedly further improve the accuracy and security of fingerprint recognition.
CMOS image sensor dominates the field of smart phones
Since Apple released the iPhone5s, fingerprint recognition technology has been paid attention to by people. At that time, the technology gave people a feeling of being very tall. Later, some Android phones also used fingerprint recognition sensors, but they were basically on high-end models. Will appear. In the next two years, fingerprint recognition technology began to grow explosively in smartphones. Whether it is a high-end machine or an entry machine at a new product launch, you can see that manufacturers use fingerprint technology as the biggest selling point of mobile phones. thing. For a time, fingerprint recognition has gradually become a standard feature of smartphones.
The CMOS image sensor, which is an important part of fingerprint recognition technology, has undergone considerable changes in 2015. Yole Developpement (Yole) report "Status of the CMO Simage sensorindustry 2015" shows that the CIS market will reach 10 billion US dollars in 2015. In addition, Sony's capacity investment to support its own technological advantages and outstanding Apple product strategy has achieved results, gaining more than one-third of the market share, and it is leading the entire smart phone industry.
The situation of Sony's competitors is not optimistic. South Korea's Samsung Electronics had to purchase Sony's sensor for the flagship model of the smartphone because of its image quality. In addition, Omni Vision Technologies (and foundry TSMC) are involved in advanced technologies such as BSI (Back Side Illumina TIon) and Phase Detection Auto Focus (PDAF). , has been struggling to grab the share of low-cost sensors.
From the perspective of future development, the industry competition of CMOS image sensors will be more reflected in the comprehensive strength of industry integration, resource integration and market control capabilities. CMOS image sensors will lead to better camera experience, faster focus speed, A more intelligent application experience is developing.
Different application needs in mobile phones, vehicles, and security
In the mobile phone market with the largest amount of CMOS image sensors, it is mainly used to take still pictures, and the requirements for high resolution are getting stronger and stronger. Basically, more than 8 million pixels meet or exceed the quality of the same digital camera. . On the other hand, in addition to shooting still photos, there are more and more applications for capturing video and uploading video clips to the network. For example, full HD full HD video can now be taken, and in the future, 4K2K ultra high resolution and high speed photography slow motion can be realized. Various application functions such as playback have become the trend of the times. Accordingly, these applications require CMOS image sensors to achieve high resolution while also requiring high-speed response capability.
In terms of car camera, it is reported that by 2016, the market is expected to reach 80 million pieces/year. The main demand in this field is mainly VGA resolution products. The mainstream of the current application system is the analog interface. At the same time, some companies have developed digital system products such as HD (720p, 1.3 megapixel). , Full-HD Full HD (1080p, 2 megapixels), etc., and all products require high sensitivity and wide dynamic range performance.
In the field of monitoring, compared with the pattern of Sony CCD sensors in the past, can the development and promotion of CMOS sensors really set off the banner of the security monitoring industry? In this regard, industry people expressed cautious and optimistic attitude.
Conclusion: Yole's latest report, "CMOS Image Sensor Industry Trends 2015" predicts that the CIS market will grow at an average annual rate of 10.6% between 2014 and 2020, driven by the mobile phone market and the automotive market. By 2020, the market will be scaled. It reached $16.2 billion. CMOS image sensors have a huge space in the application of mobile phones, automobiles, and security. With the guidance of related technologies and the needs of the intelligent era, the CMOS image sensor market is worthy of expectation, and the CMOS image sensor industry related companies are on the verge of a hit.
Corn Sheller,Hand Corn Sheller,Corn Sheller Machine,Hand Crank Corn Sheller
Hunan Furui Mechanical and Electrical Equipment Manufacturing Co., Ltd. , https://www.thresher.nl