BP845nm Bandpass Filter | CWL 845nm±2nm, FWHM 40±3nm, 2.0mm Thickness
The OPTOStokes BP845nm is a high-precision bandpass filter optimized for near-infrared applications in complex multi-light source environments. Engineered with advanced thin film coating technology, it provides average transmission greater than 95 percent across the 840–850nm range, with a center wavelength of 845nm ±2nm and a full width at half maximum of 40±3nm. This 2.0mm thick filter delivers exceptional high OD blocking across both 400–815nm and 875–1100nm ranges, ensuring superior signal isolation for high-precision optical systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | 845-40nm |
| Average Transmission | 840–850nm, greater than 95 percent |
| Center Wavelength (CWL) | 845nm ±2nm |
| Full Width at Half Maximum (FWHM) | 40±3nm |
| Blocking Ranges & Optical Density | 400–815nm and 875–1100nm, average optical density greater than 6 |
| Angle of Incidence (AOI) | 0 degree |
| Substrate Thickness | 2.0mm |
| Surface Quality | 60/40 |
Applications
This high transmission NIR bandpass filter is specifically designed for applications requiring precise spectral selection in challenging multi-light source environments. Its ultra-deep blocking performance eliminates interference from unwanted wavelengths, making it ideal for:
High-precision detection in complex multi-light source scenarios
Industrial machine vision and quality inspection systems
Laser systems and laser-based measurement equipment
Optical sensing and non-contact measurement devices
Biomedical imaging and life science research instruments
Analytical spectroscopy and environmental 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 optical components, inconsistent blocking performance in multi-light environments, and lack of specialized technical support. These issues can compromise measurement accuracy and delay project milestones. 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.
