IR BP2850 Bandpass Filter | CWL 2850nm±40nm, FWHM 400±20nm, 0.5mm
The OPTOStokes IR BP2850 is a high-precision bandpass filter fabricated from premium single-crystal silicon, optimized for mid-infrared moisture detection applications. It provides transmission greater than 80 percent at the target band, with a center wavelength of 2850nm ±40nm and a full width at half maximum of 400±20nm. Designed for 0 degree angle of incidence, this ultra-thin 0.5mm filter delivers reliable performance and exceptional high OD blocking across the 400–7000nm range.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | IR BP2850-400nm |
| Substrate Material | Single-crystal silicon |
| Center Wavelength (CWL) | 2850nm ±40nm |
| Full Width at Half Maximum (FWHM) | 400±20nm |
| Transmission | Transmission greater than 80 percent |
| Blocking Range & Optical Density | 400–7000nm, optical density greater than 2 |
| Angle of Incidence (AOI) | 0 degree |
| Substrate Thickness | 0.5mm |
Applications
This high-performance IR filters is specifically engineered for applications requiring precise spectral selection in the 2850nm water absorption band. Its exceptional performance makes it ideal for:
Industrial moisture and humidity detection systems
Food and agricultural product moisture analysis
Pharmaceutical moisture content testing
Building materials moisture measurement
Mid-infrared spectroscopic analysis instruments
Industrial process control and monitoring
Customization & Service
OPTOStokes offers comprehensive custom optical filter solutions to meet your exact system requirements. We manufacture filters in standard circular, square and custom irregular shapes, with optional precision mounting rings for seamless integration into your optical assemblies. Our extensive in-stock inventory ensures fast shipping for standard specifications, while our advanced manufacturing capabilities deliver custom orders with reliable, predictable lead times. All products are manufactured to world-class quality standards and undergo rigorous 100% optical testing before shipment.
Pain Points & CTA
Technical teams often face critical challenges: long lead times for custom infrared components, inconsistent spectral performance, and lack of specialized technical support. These issues can delay project milestones and increase operational costs. At OPTOStokes, we solve these problems with our extensive ready-to-ship inventory, flexible manufacturing capabilities, and dedicated technical support team. Whether you need a single prototype for testing or high-volume production runs, we deliver precision optical components on time, every time.
For detailed datasheets, volume pricing, or to discuss your specific filter requirements, contact our expert team at [email protected] or submit an inquiry through our website today.
