Recently, Panasonic Corporation of Japan introduced a new high-performance image sensor, which is suitable for auto-driving in cars, can see the car license plates at high speeds at night, and can also be applied to surveillance cameras and medical sensors.
It is reported that the image sensor can increase the sensitivity to 100 times, and can instantly recognize the signal lights, pedestrians and obstacles when the vehicle is automatically driving at night. The technology is expected to be put into use as early as 2020.
In this sensor development, Matsushita changed the material used to make the sensor from the previous silicon to the organic material film. The basic technology was established together with Fujifilm. The self-developed circuit design reduces noise from light to electrical signals. In addition, the structure of the electrode portion is adjusted so that even weak light can be efficiently absorbed. The sensitivity is increased to 100 times that of the general product. Compared with the general image sensor, when it encounters strong light such as headlights, the image is easy to whiten. At night, it is impossible to clearly distinguish the color of the signal light and the technical defects of the pedestrian. Using the newly developed sensor of Panasonic, the vehicle even when driving automatically I can see the car license plate number driving at high speed at night. In addition to being used in autonomous driving, the sensor is expected to be used in other areas such as surveillance cameras and medical sensors.
In addition to Panasonic, Sony, another Japanese company with strong technology and market share in sensors for smartphones, will begin mass production of automotive CMOS (complementary metal oxide film semiconductor) image sensors from May 2016. This sensor achieves the level of color images taken at night. It also sees organic material sensors as one of the potential technologies of the future and is stepping up development. From this point of view, in the context of various auto manufacturers competing to develop autonomous driving technology, the actions of related industries are also becoming increasingly active.
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