Micromu 7709-1 PIR Fresnel Lens for Infrared Switch

PIR Fresnel lens are widely used in body sensor switch, infrared alarm, infrared thermometers and infrared imaging. Micromu can provide users with various types angle sensor,sensing range,size, ratio test series fresnel lens.

Features:

1.Designed for passive infrared sensor applications

2.Well suited for compact, low profile sensors

3.Can be used in applications involving security, lighting controls and environmental controls

4.Optimized for dual element pyroelectric devices

5.White light immunity to reduce false triggers

6.UV resistant for outdoor applications

7.Designed for uniform sensitivity to reduce electronic gain

Functions:

The Fresnel lens function has two: One, the focusing action, soon hotly releases the infrared signal refraction (reflection) on PIR, the second function is divided into the search coverage in certain area Pellucidar and the dark area, causes to enter the search coverage the motion object to be able to produce by the temperature change form on PIR changes releases the infrared signal hotly.