Products Description
BP660 Bandpass Filter | 90nm FWHM, 1.0mm, 60/40 Surface Quality
The OPTOStokes BP660 is a high-performance visible bandpass filter centered at 660nm, engineered with a wide 90nm passband to deliver exceptional light throughput for red-wavelength optical systems. Coated with durable dielectric thin films on precision 1.0mm optical glass substrates, this filter achieves greater than 90% average transmission across 630–700nm while delivering strong out-of-band rejection from 350nm to 1100nm. Manufactured to 60/40 surface quality standards, it maintains consistent spectral performance under varying environmental conditions, making it suitable for both R&D prototyping and high-volume OEM integration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Center Wavelength (CWL) | 660 ±5 nm @ 50% Transmission |
| Full Width at Half Maximum (FWHM) | 90 ±5 nm |
| Average Transmission | Greater than 90% across 630 – 700 nm |
| Blocking Range | Less than 1% transmission from 350 nm to 1100 nm |
| Surface Quality (Scratch/Dig) | 60 / 40 |
| Substrate Thickness | 1.0 mm |
| Coating Type | Hard dielectric thin-film coating |
Applications
This 660nm bandpass filter is optimized for plant science and agricultural optical sensing. Primary use cases include plant chlorophyll fluorescence detection and crop growth remote sensing monitoring, where its wide passband maximizes signal collection from leaf tissue samples. It also supports general VIS filters applications such as visible light imaging, color sorting, analytical instrumentation, and industrial inspection systems. The balanced spectral design improves signal-to-noise ratio in low-light detection environments, supporting reliable quantitative measurement in field and laboratory setups.
Customization & Service
OPTOStokes maintains an extensive in-stock selection of standard visible bandpass filters to support fast sampling and reliable lead times. For project-specific requirements, we offer full customization covering substrate materials, overall dimensions, and geometries including round, square, and custom irregular shapes. Mounting ring assembly options are also available to simplify system integration. All filters are manufactured to world-class precision standards, with rigorous spectral and mechanical quality inspection to guarantee consistent performance and long-term durability.
Technical Support & Inquiry
Engineering and procurement teams often face common sourcing challenges: extended lead times for custom optics, limited technical guidance during filter selection, and inconsistent coating quality across production batches. OPTOStokes addresses these pain points through our combination of ready-to-ship inventory, in-house optical engineering expertise, and flexible custom manufacturing capabilities. For custom specifications, volume pricing, or application-specific filter selection guidance, contact our technical sales team at sales@optofilters.com or submit an inquiry directly through our website for a prompt, detailed response.
Tags: bandpass filters high transmission optical density VIS filters thin-film coatings 660nm
