Visible light sensor will be visible as the detecting object, and translates into the output signal of the device. Visible light sensor is the most production and widely used sensors, the company's main products such as photo resistor, photo transistor and CMOS linear sensor. Several kinds of main types of the visible light sensor performance comparison:
In the mid-low end of the visible light sensors, Photo transistor comprehensive performance is better than photo resistor. In the factors of the performance and applied range, Photo transistor depends on good comprehensive performance, gradually replace photo resistor will be trending.
High-end optical sensors as represented by CMOS linear optical sensors due to low dark current, high sensitivity, low illumination response and current changing with light increase linearly characteristic. It has a wide range market of backlight adjustment and control, widely used in televisions, computer monitors, LED backlight, smart phones, digital cameras and other products. It is one of important development direction of visible light sensor in the future.
In recent years, our country strongly supports the development of the smart city, the visible light sensor industry in our country show good development momentum. China visible light sensor market scale was only about 800 million RMB in 2009. In 2014, the visible light sensor industry segment market scale has reached 2.5 billion RMB.It is expected to 2018, the China visible light sensor market scale will reach 7.8 billion RMB.
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