Our PIR lens arrays are Fresnel lens arrays designed for Passive Infrared sensor applications. Our optical surfaces are increases lens sensitivity for PIR sensor applications. These arrays can be used in applications involving security, lighting controls, and environmental controls. They are designed for uniform sensitivity, which means that each zone has approximay the same sensitivity as the others, and the total electronic gain of the sensor can be minimized. They feature a short focal length that makes them well suited for compact, low profile sensors. In addition, all PIR arrays are: Optimized for dual element pyroelectric devices White light immunity to reduce false triggers UV resistant for outdoor applications Designed for uniform sensitivity to reduce electronic gain