Products Description
BP935 Bandpass Filter | CWL 935nm, FWHM 50nm

The OPTOStokes BP935 bandpass filter is engineered for high-precision optical applications requiring targeted Near-Infrared (NIR) signal isolation. Operating at a center wavelength (CWL) of 935nm ± 5nm with a full width at half maximum (FWHM) of 50nm ± 5nm, this filter provides exceptional optical throughput, delivering greater than 90% transmission across the 930nm to 950nm spectral range. Designed for zero-degree angle of incidence (AOI: 0 degree), it optimizes signal detection while suppressing environmental interference.
Technical Specifications
| Parameter | Specification Value |
|---|---|
| Center Wavelength (CWL) | 935nm ± 5nm |
| Full Width at Half Maximum (FWHM) | 50nm ± 5nm |
| Passband Transmission | 930nm - 950nm @ T > 90% |
| Out-of-Band Rejection | 350nm - 1100nm @ OD > 2 |
| Angle of Incidence (AOI) | 0 degree |
Target Applications
Due to its high spectral selective transmission and reliable out-of-band blocking (OD > 2 from 350nm to 1100nm), the BP935 is widely integrated into agricultural NIR crop detection systems, multi-spectral imaging instruments, and industrial NIR sensing setups. It effectively isolates specific vegetation reflection bands while blocking ambient solar radiation, enabling precise canopy health monitoring and yield estimation.
Customization & Manufacturing Services
OPTOStokes carries an extensive stock selection of ready-to-ship standard optical elements. For specialized optical systems, we provide comprehensive manufacturing support. We custom machine optical filters into round, square, or custom geometric shapes, with optional protective mounting rings. Every component undergoes rigorous quality control to guarantee reliable lead times and repeatable performance across production batches.
Technical Support & Contact
Eliminate project delays and optical alignment challenges with our dedicated technical support team. Whether you need off-the-shelf samples for immediate evaluation or tailored OEM coating designs, OPTOStokes delivers top-tier optical precision. Contact our engineering consultants today at sales@optofilters.com or submit an online inquiry to receive detailed quote options and technical datasheets.
Tags: optical filters optical components bandpass filter NIR filter 935nm bandpass filter