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Infrared Sensing Fresnel Lens Infrared Sensing Fresnel Lens

Good Round Fresnel Lens 8002-2

Specification

[Product Name] PIR Fresnel Lens

[Model] 8002-2
[Material] HDPE  (High-Density Polyethylene)
[Dimension] 23.3*23.3*14.8mm
[Focal Length] 10.5mm
[Sensing Angle] 360° (ceiling or dome mounting)
[Detection Distance] 10M
[Color] white, black, customized
[Type] Wall-mounted > 1.5m (Cover type)

[Application] Smart Home, Security, Motion-activated Devices

[Manufacturer] Shandong Yuying Optical Instrument Co., Ltd


Good Prices Good Round Fresnel Lens | HDPE Material | 360° Motion Detector | Focal 10.5mm


Shandong Yuying Optical – 30+ years in precision Fresnel optics, ISO-certified, delivering reliable high-performance lenses to global display manufacturers.


Advantages of HDPE Round PIR Fresnel Lens
Durable HDPE Material – High infrared transmittance and long service life.
Precise Detection – Maintains accurate motion sensing across detection zones.
Compact & Lightweight – Fits miniaturized smart home devices.
Customizable Design – Detection angles, diameters, and focal lengths adjustable.
OEM/ODM Ready – Supports high-volume production and branding.

How Round PIR Fresnel Lenses Work
The round PIR Fresnel Lens divides infrared radiation into multiple zones and focuses it onto a pyroelectric sensor. When a human or object moves across these zones, changes in infrared energy are detected, triggering motion-activated systems. The lens design ensures wide-angle detection while keeping the optical path stable.


Customized Services

Yuying offers customized Fresnel lenses based on customer requirements, including different sensing angles, detection distances, sizes, and test ratios. All of our products are made using original molds, preserving the accuracy of the original design and reducing the precision loss and time delays caused by secondary mold changes. New products are typically available for sample delivery within 30 days.





Design & Development

We utilize proprietary infrared sensing design software to meet customer needs with precision. All stages of product development—from design validation, mold processing, testing, production, inspection, to packaging—are carried out internally, ensuring on-time delivery.

FAQ


Q1: What material is used for this lens?
A: High-quality optical HDPE is used, providing excellent infrared transmittance and durability.

Q2: Can the detection angle be customized?
A: Yes. Detection angles and distances can be tailored to your sensor and application.

Q3: Is the lens suitable for outdoor devices?
A: Outdoor use requires protection from harsh environments. UV-resistant HDPE coatings are available.

Q4: Can it be used in low-power, battery-operated devices?
A: Yes, the lightweight and compact design supports low-power PIR modules.

Q5: What devices is this lens compatible with?
A: Standard PIR motion sensors for smart home, IoT, and security devices.




Applications


Smart Doorbells & Alarms

  • Ensures stable infrared detection for compact smart home devices.


Motion-activated Lighting

  • Accurate detection for corridors, bedrooms, and hallways, reducing false triggers.


Home Security Systems

  • Protects sensors in alarms and smart security panels from dust and physical damage.


IoT & Wireless Sensors

  • Suitable for low-power PIR modules in IoT automation devices.





Product Video

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