Diffenrent kinds of light sensor

A light sensor is a sensor that strains light intensity.

The type and function of the light sensor;

First, the ambient light sensor

The ambient light sensor can sense the ambient light and tell the processing chip to automatically adjust the brightness of the display backlight to reduce the power consumption of the product. For example, in mobile applications such as mobile phones and notebooks, the display consumes up to 30% of the total battery power, and ambient light sensors can maximize battery life.

On the other hand, ambient light sensors help the display provide a soft picture. When the ambient brightness is high, the liquid crystal display using the ambient light sensor will automatically adjust to high brightness. When the external environment is dark, the display will be adjusted to low brightness to achieve automatic brightness adjustment. The ambient light sensor needs to be attached with an infrared cut-off film on the chip, and even a patterned infrared cut-off film is directly plated on the silicon wafer.

Second, infrared light sensor

The infrared light sensor uses a charged thermopile and a bromine iodide (KRS-5) window to sense wavelengths from 580 to 40,000 nm. The sensor allows students to measure a range of phenomena themselves, including infrared radiation from their palms.

Third, the sun sensor

1, can recognize the horizontal, vertical 360 degrees. The location of the sun, identification, cloudy, cloudy, half cloudy, sunny and evening. Track position recognition.

2. Identify circuit processing and servo drive. The processing of the above information is completed by using a digital chip. Can serve a variety of ordinary motors, stepper motors. The whole machine consumes 3mA and the chip operates at 5V.

Fourth, ultraviolet light sensor

The UV sensor uses a filter to measure the ultraviolet band (315 nm - 400 nm). The filter is removed and the sensor senses visible light at the same time. The sensor includes an ultraviolet filter, a collimator, and a sensor handle.

If you want to know more, our website has a product specification for different sensor, you can go to ALLICDATA ELECTRONICS LIMITED to get more information