The SB-LS-04 Fresnel Lens from SENBA is a high-quality optical component designed for passive infrared (PIR) motion detection systems requiring stable mid-range sensing performance. Manufactured from durable HDPE material, it ensures excellent infrared transmission efficiency, mechanical strength, and long-term reliability in smart sensing applications.
This Fresnel lens is optimized to enhance PIR sensor accuracy by focusing infrared radiation into multiple detection zones, improving sensitivity and motion detection stability. It provides a wide 120° detection angle with an effective sensing distance of up to 8 meters, making it suitable for mid-range motion detection applications in smart lighting, security systems, and automation devices. The multi-zone optical design helps reduce blind spots and ensures consistent detection performance.
With a compact 9mm form factor, the SB-LS-04 lens is easy to integrate into modern PIR modules and electronic devices where both performance and space efficiency are required. The HDPE material provides strong environmental resistance, stable optical properties, and long service life.
Compared to standard Fresnel lenses, the SB-LS-04 delivers improved detection balance, enhanced infrared focusing capability, and reliable motion sensing performance for a wide range of applications.
Key Features:
- High-efficiency Fresnel optical design
- Wide detection angle: 120°
- Effective sensing distance: up to 8 meters
- Durable HDPE material construction
- Compact 9mm lens size
- Enhanced infrared focusing performance
- Stable PIR detection accuracy
Applications:
- PIR motion sensor modules
- Smart lighting systems
- Security and alarm systems
- Energy-saving automation devices
- Smart home and IoT applications
- Indoor and outdoor motion detection systems
