Overview of Plastic Fresnel

The fresnel plastic lens is a optical element, one side is smooth, another side is by a ring a part of concentric garden composition. Fresnel lens arrays designed for passive ir motion sensor. The optical surface increases lens sensitivity for PIR sensor application. All the PIR sensor must work with the Fresnel Lens.

The Fresnel lens, simply say to be in the lens side have equi-distant tooth tattoo. Through these tooth tattoo, can achieve to specified spectrum light band tong (reflecting or refraction) role. The traditional grinding optical equipment band-pass optical filters are expensive. The Fresnel lens can greatly reduce costs. A typical example is PIR (passive infrared detector). PIR used widely in alarm.

Advantages

Easy to install

High quanlity

Factory price

Specification

Model Number: S9008

Overall size:22.8mm

Focal length: 15.5mm

Detectable distance: 8m

Viewing angle: 120°

Color: Transparent

Material: HDPE

FAQ

1.What is the payment term?

TT 100% in advance.

2.What is the package.

Plastic bag.