The LWP5500nm Infrared Long Pass Filter from SENBA is a high-performance optical component engineered for precise infrared (IR) transmission in thermal sensing and imaging applications. Designed with advanced thin-film coating technology on a silicon substrate, this filter enables efficient transmission of long-wave infrared radiation while effectively blocking unwanted shorter wavelengths.
With a central wavelength of 5500nm, the filter provides high transmittance of over 75% in the 7–12µm range, making it ideal for long-wave infrared (LWIR) applications such as thermopile sensors, thermal cameras, and environmental monitoring systems. It offers excellent cutoff performance, achieving less than 1% average transmittance in the 1–5µm range, ensuring superior spectral selectivity and minimizing interference from non-target wavelengths.
The filter is manufactured on a durable silicon substrate, ensuring excellent thermal stability and mechanical strength. With a standard diameter of 150±0.50mm and thickness of 0.62±0.05mm, it supports consistent optical performance. Customization options for size, thickness, and base material are available to meet specific design requirements.
Compared to standard IR filters, the LWP5500nm provides enhanced spectral precision, improved transmission efficiency, and reliable performance in demanding environments.
Key Features:
- Long pass infrared filter with 5500nm cutoff
- High transmittance: >75% in 7–12µm range
- Strong blocking: 1–5µm Tave <1%
- Silicon substrate for thermal stability
- Standard size: Ø150±0.50mm, thickness 0.62±0.05mm
- Customizable dimensions and specifications
Applications:
- Thermopile and infrared temperature sensors
- Thermal imaging and night vision systems
- Gas detection and environmental monitoring
- Industrial infrared measurement systems
- Medical diagnostic devices
- Smart home and automation sensors
- Scientific and optical instrumentation
