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Long Detect Rang Fresnel Lens L8006WT for Automatic Light
Long Detect Rang Fresnel Lens L8006WT for Automatic Light

Long Detect Rang Fresnel Lens L8006WT for Automatic Light

Overview

There are two type for fresnel lens, flat and round. The main material for fresnle lens is poly methyl methacrylate. Fresnel lens ultrathin structure, large size and arbitrary shape cutting, excellent light transmittance of traditional geometric convex lens has many advantages, its weight less than convex lens and a variety of occasions. 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.


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Advantages

  • Easy to install

  • High quanlity

  • Factory price

 

Specification

  • Model Number: L8006WT

  • Overall size: 49mm

  • Focal length: 15mm

  • Detectable distance: 7m

  • 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.

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FAQ
  • Is Wave Soldering Recommended?

    Wave soldering is likely to cause degradation of product performance. Wave soldering is not recommended. Generally we recommend to solder by hand.


  • Can PIR Sensor Detect Animals?

    PIR sensors are excellent in human and animal detection. They are mostly used in triggering an intruder alarm and activate household appliances upon the presence of a human.

  • Do PIR Sensors Work Through Glass?

    No, alarm motion sensors do not work through glass. Most motion sensors use passive infrared (PIR) technology to detect motion. Changes in IR energy are not easily detected through glass. This is why motion sensors will generally not work through windows, which are usually insulated.


  • What Is The Package?

    1. PIR sensor: Graphic Carton-> Carton

    2. LDR: plastic bag -> Graphic Carton -> Carton

    3. Fresnel Lens: plastic bag -> Carton


  • What are the Factors that Affect the Performance of the Product?

    1. When there is dirt on the window, it will affect the detection performance.

     

    2. When the ambient temperature and the human body temperature are close, the detection and sensitivity are significantly reduced, sometimes causing short-term failure. The recommended minimum temperature difference between the ambient temperature and the human body temperature needs to reach at least 4 ° C.

     

    3. When designing the circuit, pay attention to anti-interference measures to prevent false alarms caused by radio frequency interference.