BP650nm Bandpass Filter | FWHM 50nm, 1.1mm Thickness
The OPTOStokes BP650nm Bandpass Filter delivers excellent spectral control and high transmission for optical systems operating in the red wavelength region. With over 90% transmission from 635–675nm and strong out-of-band blocking across 350–1100nm, this filter ensures clean signal isolation and superior color separation in fluorescence and machine vision applications.
Technical Specifications
| Center Wavelength (CWL) | 650 ± 3 nm |
| Full Width at Half Maximum (FWHM) | 50 ± 3 nm |
| Transmission Range | 635 – 675 nm @ T>90% |
| Blocking Range | 350 – 1100 nm @ T<1% |
| Surface Quality | 60/40 scratch-dig |
| Thickness | 1.1 mm |
| Reference Part No. | 20216418 |
Applications
The BP650nm filter is ideal for red fluorescence detection, biomedical imaging, and color separation in digital and industrial vision systems. It effectively isolates red emission bands while maintaining consistent spectral performance under wide-angle illumination and high-intensity sources.
Customization & Service
OPTOStokes provides both standard and custom filter options. Available shapes include round, square, and irregular geometries, with optional mounting rings. Our precision coating technology ensures stable optical characteristics and durability. With extensive in-stock inventory, OPTOStokes guarantees fast delivery and reliable quality assurance.
Pain Points & Contact
If your project requires precise wavelength control, shorter lead times, or high optical density outside the passband, our engineering team can assist with optimized designs and performance matching. Contact us at sales@optofilters.com or visit www.optofilters.com to discuss your optical system needs.
