1/4Sphere Fresnel PIR Sensor Lens specifical shape lens for PIR human detector
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Fresnel PIR lens has two functions: 1. It is the focusing effect, that is, the pyrolysis infrared signal is refracted (reflected) on the PIR. 2. The detection area is divided into a number of bright areas and dark areas, so that the moving object entering the detection area can generate a modified pyroelectric infrared signal on the PIR in the form of temperature change.
Security System: The Fresnel PIR Lens is commonly used in security systems to detect motion and trigger alarms. When installed in a security camera or sensor, the lens can accurately detect movement within its field of view. This application scenario is ideal for home security systems, commercial buildings, and outdoor surveillance cameras. The Fresnel PIR Lens ensures reliable motion detection, helping to enhance the overall security of the premises.
Energy Saving Lighting: The Fresnel PIR Lens is also utilized in energy-saving lighting systems. By integrating the lens into lighting fixtures, the system can detect the presence of individuals in a room and automatically adjust the lighting levels accordingly. This application scenario is commonly seen in offices, warehouses, and public buildings where energy efficiency is a priority. The Fresnel PIR Lens helps to reduce energy consumption by ensuring that lights are only on when needed, leading to cost savings and environmental benefits.
Automatic Doors: Another application scenario for the Fresnel PIR Lens is in automatic door systems. By incorporating the lens into the door mechanism, the system can detect approaching individuals and automatically open the door. This is particularly useful in high-traffic areas such as shopping malls, airports, and hospitals, where hands-free access is convenient and improves accessibility. The Fresnel PIR Lens enhances the functionality of automatic doors, providing a seamless and efficient entry experience for users.
HVAC Control: The Fresnel PIR Lens can also be integrated into HVAC (heating, ventilation, and air conditioning) systems for efficient temperature control. By detecting occupancy in a room, the lens can signal the HVAC system to adjust the temperature settings accordingly. This application scenario is beneficial in commercial buildings, hotels, and residential properties where maintaining a comfortable indoor environment is essential. The Fresnel PIR Lens helps to optimize energy usage and enhance occupant comfort by providing precise occupancy-based temperature control.
Smart Home Automation: The Fresnel PIR Lens is a key component in smart home automation systems. By connecting the lens to a smart home hub or controller, users can create customized automation routines based on motion detection. This allows for hands-free operation of various devices and appliances in the home, such as turning on lights, adjusting thermostats, or activating security cameras. The Fresnel PIR Lens enables homeowners to enhance convenience, security, and energy efficiency in their living spaces through intelligent automation solutions.
Product classification of Fresnel PIR lens
Fresnel infrared sensor lens produced by our company is divided into five series according to the appearance and size.
1. Helical series below Φ30mm ----Easy to install, easy to conceal
2. Φ30mm or more hemispherical series ----- mostly used for ceiling lamps, large sensing angle
3. square sheet series ------ mostly used in security series, long sensing distance, large horizontal sensing angle
4. circular sheet series ----- mostly used for infrared thermometer, small diameter, small focal length
5. special shape series ------ customer special requirements open mold
