Gas Detection Infrared Bandpass Filter - INBP4260

In industrial safety, environmental monitoring, and smart home applications, the accuracy of gas leak detection impacts life and property safety directly. As a core component of gas sensors, the INBP4260 infrared narrowband filter has become the "gold standard" for carbon dioxide (CO₂) detection, thanks to its exceptional spectral selectivity.

Technical Core

Performance Optimization

Applications

Specifications

Custom-engineered for CO₂ detection, the INBP4260 filter features a 4260nm center wavelength, precisely aligning with CO₂ molecular absorption peaks to eliminate environmental light interference effectively and enable ppm-level concentration detection. With a full width at half maximum (FWHM) < 90nm, ≥80% peak transmittance, and UV-11μm full-band blocking depth (T < 0.1%), it ensures strong signals and low noise, making it ideal for flame detectors, industrial process control, and indoor air quality monitoring.

Beijing Bodian Optical Technology Co.Ltd: 40 Years of Thin-Film Expertise, Customized Production Guaranteed

With over 40 years of experience in optical thin-film technology, Bodian—a national high-tech enterprise—operates cutting-edge vacuum deposition equipment and a full-spectrum testing system. For the INBP4260 filter, we offer:

Material Customization: Supports substrates like monocrystalline silicon and sapphire, with flexible dimensions and thickness options to meet diverse sensor packaging needs.

Tailored Specifications: Circular, square, or custom-shaped designs available for bulk production, with lead times as short as 10 days.

Features

Temperature Stability: Material modifications (e.g., low-CTE substrates) and optimized coating designs limit center wavelength drift to ≤20nmacross -40°C to +85°C, ensuring reliability in extreme environments.

Batch Consistency: 100% full-spectrum testing guarantees spectral parameter variations ≤5%, reducing customer calibration costs.

Performance Optimization

Industrial Safety: In petrochemical and power sectors, the INBP4260 enables real-time CO₂ leak monitoring, triggering alarms to prevent explosion risks.

Environmental Monitoring: Paired with pyroelectric detectors, it tracks atmospheric CO₂ levels, supporting carbon neutrality goals.

Smart Homes: Air quality monitors integrating the INBP4260 simultaneously detect PM2.5 and CO₂. When CO₂ exceeds thresholds (e.g., >1000ppm), they automatically activate purification and send alerts. In offices or schools, the filter supports CO₂-linked smart ventilation systems. In kitchens, it works with gas sensors to detect methane leaks, triggering valve shutdowns, exhaust fans, and warnings for all-around safety and comfort.

Choose Bodian’s INBP4260 filter for high-precision, high-reliability gas detection solutions. Contact us today for technical consultations and customized quotes—let’s safeguard safety and health together!