The topic ‘Help: PIR spares and repair – curved lens or whole sensor’ is closed to new replies. Infrared Optics Polymer Optics Ltd is a leading supplier of Passive Infra-Red (PIR) lenses and PIR lens design services to the security and lighting control industries. \$\endgroup\$ – tomnexus Aug 21 '15 at 9:26 \$\begingroup\$ How about radar? The Len's are completed broken up and shredded. I changed them out today and the instructions were fair but not as good as they should be. Dome size PIR Sensor lens cover is primarily used to transmit infrared light for motion sensor and motion detector use. Thanks a whole lot. The lens, the PIR sensor, and the light meter are the most fragile aspects of your camera. I have emailed Moultrie numerous times, but have gotten no responce. If you look closer, you’ll see that the “dome” is build out of little segments – each being a small plastic Fresnel Lens. While they are built sturdy, forcing plastic to break open can result in broken hinges, creating a bigger problem than you started with. They're different at different wavelengths, but you still need a way for the radiation to pass through the wall of the box. Anyone know of any problems with that fix? Fixed the broken LED glass with a quick Plexiglass cut. PIR sensors detect general movement, but do not give information on who or what moved. The camera still functions, but I need to replace to PIR lens to prevent the potential for moisture to get into the camera. Issue 134. Small leaves or twigs should not produce many false triggers based on how the camera operates. This video looks at the problems and success I had using a eBay sourced low cost Chinese made Exterior Lighting Motion Sensor I went ahead and made a drawing of the PIR lens showing the top and bottom better versus the wording in the instructions. Christmas Countdown Day 24 – Thomson Bar & Stem; While our lenses are mostly used for security and lighting applications they have numerous other area sensing applications for products such as fan control, door activation, temperature measurement and Latest Stories. I have 2 Pro 2 cameras (That still work) and both have the PIR lens destroyed by a woodpecker. A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. What can I use to replace the lens… That passes through a … I got the PIR lenses yesterday (Saturday). Seems to be working fine in my other camera. PIR Lens “Dome” As you can see in the pictures above, the PIR has some funny dome-like bubble, which is a collection of lenses covering the sensor. They are most often used in PIR-based motion detectors.PIR sensors are commonly used in security alarms and automatic lighting applications. The lens of a camera, or the lens of a PIR, is the window. 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