The NBP5780-180nm Infrared Narrow Band Filter from SENBA is a high-precision optical filtering component designed for selective wavelength transmission in advanced infrared sensing and analytical systems. Centered at 5780±50nm with a narrow bandwidth of 180±20nm, it delivers excellent spectral accuracy, making it ideal for chemical gas detection, infrared spectroscopy, and scientific measurement applications.
Manufactured using advanced thin-film coating technology on a high-quality silicon substrate, the filter ensures high transmittance of ≥75% within the designated passband. It also provides ultra-low out-of-band leakage, achieving average transmittance of <0.5% across the 1–11µm range outside the passband. This strong blocking capability significantly reduces spectral interference and improves signal clarity, enabling highly accurate measurement results in sensitive optical systems.
The silicon substrate offers excellent thermal stability, mechanical strength, and long-term reliability, ensuring consistent optical performance in demanding industrial and laboratory environments. With a standard diameter of 100±0.2mm and thickness of 0.5±0.05mm, the filter supports stable integration into a wide range of optical assemblies. Customization options for size, thickness, and substrate are available to meet specific application requirements.
Compared to conventional infrared filters, the NBP5780-180nm provides superior spectral selectivity, improved transmission efficiency, and enhanced blocking performance for high-accuracy infrared applications.
Key Features:
- Narrow band IR filter centered at 5780±50nm
- High transmittance: ≥75%
- Bandwidth: 180±20nm
- Ultra-low leakage: 1–11µm Tave <0.5%
- Silicon substrate for durability and stability
- Standard size: Ø100±0.2mm, thickness 0.5±0.05mm
- Customizable optical and mechanical specifications
Applications:
- Chemical gas detection systems
- Infrared spectroscopy and analysis
- Environmental monitoring equipment
- Industrial process control
- Scientific research instrumentation
- Optical sensing systems
- Gas leak detection and safety systems
