Product Name: Free Sample Round Flat Fresnel Lens for Infrared Thermometer Model NO.: HW-8222 Coating: UV Customized: Customized Certification: RoHS, ISO9001, CE Lenses Color: White Material: HDPE Shape: Laminated Lenses Transmittance: 90%-95% Type: Convex Lens Usage: Optical Diameter: 22 Focus Length: 20mm Distance Ratio: 6:1 Thickness: 1mm Distance: 10m Lifetime: 10 Years Appliance: Security System &Thermodetector Free Sample: Available Trademark: Haiwang(HW) Transport Package: 250 Pieces in a Poly Bag Specification: Diameter 22mm Origin: Guangdong, China HS Code: 9001909090 Product Description Round Flat Fresnel Lens for Infrared ThermometerSpecificationModelHW8222MaterialHDPEDiameter22mmFocus Length20mmDistance Ratio6:1Distance10mShapeRound lensColorWhitePackage250 pieces in apoly bagProduction Capacity100000/WeekCustomizedavailableFree SampleavailableFeature1.Designed for passive infrared sensor applications2. Easy to cut; high compatibility ,low cost and environment3.Can be used in applications including security system, lighting controls and environmental controls4.Optimized for dual element pyroelectric devices5.White light immunity can reduce false triggers6.UV resistant for outdoor applications7.Designed for uniform sensitivity to reduce electronic gainFunctionThe Fresnel lens has two functions as follows1. The focusing action, soon hotly releases the infrared signal refraction (reflection) on PIR,2. Fresnel lens divides the search coverage into detection area and non-detection area. PIR can generate pyroelectric infrared sinal when moving object enters the detection area making the change of temperature.Picture ShowOther Fresnel Lens Models Diameter 30mm Above Dome Shaped Fresnel LensModelFocus LengthAngleDistanceDiameter8002-110.5mm100°10mφ23m8002-212mm100°10mφ23m8002-312mm120°10mφ24mm831010.5mm100°10mφ24mm81206mm120°12mφ12.7mm8003-1 10.5mm100°7mφ23mm8003-311.5mm120°10mφ25mm Diameter 30mm Below Dome Shaped Fresnel LensModelFocus LengthAngleDistanceDiameter8308-16mm60°5mφ11.5mm8308-29.5mm140°8mφ12.5m H14.3mm8308-3 5mm120°5mφ11.8mm8308-59mm90°5mφ10.27mm H8.8mm7709-1 7.6mm90°6mφ21mm7709-1C7.6mm90°6mφ20.7mm7709-25mm89°6mφ17mm7709-46mm90°7mOuter D17mm Inner D15mm800510.5mm100°7mOuter D23m Inner D22mm9002 12mm116°8m24mm×16.7mm2814 15mm140°7mφ28mm80166mm120°6mφ16mm H6mm81099mm100°10mφ24mm8090 9mm120°8mφ17.8mm822515mm120°8mφ22mm8120-46mm120°6mφ12.7mm00250mm120°10mφ100mm8603-317.5mm360°8mφ45.9mm8603-512mm360°10mφ35mm860418mm360°8mOuter D51mm Inner D35.5mm8102-2 15mm360°7mOuter D49mm Inner D37mm Rectangle Shaped Fresnel LensModelFocus LengthAngleDistanceSize762620mm15°10m75mm×26mm7704-3 23mm110°12m56.7mm×35.7mm7704-2 23mm110°12m36mm×57mm1500 21mm240°15m26mm×85mm7707-525mm180°12m26mm×75mm7707-1525mm120°12m20mm×82.5mm7708-3 29.7mm79.8°10m58mm×45mm7708-9 23mm120°16m59mm×41mm780320mm89°7m25mm×39mm7804-4 22mm112°12m23mm×56.2mm780929.69mm100°12m49mm×57mm8501-2 21mm180°15m38mm×78mm8702-123mm270°15m44mm×149mm871925mm90°15m53.5mm×34mm764330.5mm90°12m60.7mm×42.4mmWelcome to ask me for the update pir lens catalogue.about Haiwang SensorShenzhen haiwang sensor co., ltd is in line of pir item for more than 10 years.Pir lens, pir sensor, pir ic and pir module can be offered.Free samples for testing is available for us.Also custom lens is ok for us.Just offer us the drawing.Philips is our current client for customed lens.Welcome to ask for inquiry.Shenzhen haiwang sensor co., ltdTel:86-755-82867860 (ext:612)