Products Description
BP865nm Bandpass Filter | FWHM 45nm, Near-Infrared Precision

The OPTOStokes BP865nm bandpass filter is engineered for high-performance near-infrared (NIR) applications. Delivering exceptional signal-to-noise ratios, this interference filter combines high peak transmission with deep out-of-band blocking. It is ideal for integration into biometric systems, optical sensors, and precision imaging setups requiring strict spectral isolation.
Technical Specifications
| Optical Parameter | Specification Value |
|---|---|
| Center Wavelength (CWL) | 865 plus or minus 5 nm |
| Full Width at Half Maximum (FWHM) | 45 plus or minus 5 nm |
| Transmission Range | 850-880 nm at T greater than 90 percent |
| Blocking Range | 350-1100 nm at OD greater than 3 |
| Surface Quality | 60-40 Scratch-Dig |
Typical Applications
Optimized for near-infrared machine vision and diagnostic instruments, this filter is widely deployed in:
NIR 3D face recognition systems and biometric access control.
Cosmetic analysis equipment and skin spectrum detectors.
Industrial laser scanning and optical sensing instrumentation.
Customization & Rapid OEM Supply
As a leading specialist in optical filters, OPTOStokes maintains an extensive in-stock selection of standard components to ensure rapid deployment. We leverage advanced optical coatings to support highly customized configurations, including custom dimensions (circular, rectangular, or custom shapes) and metal mounting ring options. Every component undergoes rigorous spectrophotometric verification to guarantee world-class quality and stable lead times.
Solve Spectral Noise | Contact OPTOStokes
Eliminate stray light issues and unoptimized lead times in your production cycle. Our technical engineering team provides direct design support to match your specific system tolerances. For volume pricing, data sheets, or custom dimension requests, please submit an inquiry directly through our site or contact our global sales desk at sales@optofilters.com.
Tags: bandpass filters OPTOStokes optical coating NIR filter 865nm bandpass filter spectroscopy filte