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Overview
The fresnel 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 Infrared Sensor. The optical surface increases lens sensitivity for PIR sensor application. All the PIR sensor must work with the Fresnel Lens.
The Fresnel plastic 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.
Senba Sensing Technology Co.,Ltd., was founded in 2005, with the focus on producing the top quality infrared photoresistor. If you want to know more details, just feel free to contact us!
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