PIR fresnel lens is made of plastic with the advantage of least absorption loss.PIR Fresnel lens are useful in a wide range of devices, such as automatic lighting switches, occupancy sensors, and motion sensor alarms.

Human infrared sensor lens profile: Fresnel lens infrared sensors are widely used in the human body sensor switch, alarm, infrared thermometers and infrared imaging, etc., Realpoo Optics can provide users with different angle sensors, sensing range, size, ratio test series of Fresnel lens.
Infrared sensor lens effect is as follows:
1, you can collect as much infrared sensor to improve sensitivity.
2, expanding the sensor sensing the angle.
3, the material has a filtering effect, can block the visible and infrared light outside the human body infrared, enhanced anti-jamming capability.