Products Description
BP785 NIR Bandpass Filter | CWL 785nm, FWHM 40nm, AOI 0°
The OPTOStokes BP785-40nm is a high-precision optical bandpass filter engineered for near-infrared (NIR) sensing and diagnostic applications. Featuring a center wavelength (CWL) of 785nm ± 5nm and a full width at half maximum (FWHM) of 40nm ± 5nm, this bandpass filter delivers high passband transmission exceeding 90% between 775nm and 795nm. Manufactured with durable thin-film hard optical coatings, it provides sharp edge transitions and deep out-of-band blocking to ensure precise signal capture in complex optical setups.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | BP785-40nm |
| Center Wavelength (CWL) | 785nm ± 5nm |
| Full Width at Half Max (FWHM) | 40nm ± 5nm |
| Passband Transmission | T > 90% @ 775-795nm |
| Out-of-Band Blocking | OD > 2 @ 350-1100nm |
| Angle of Incidence (AOI) | 0° |
Applications
Optimized for NIR wavelength isolation, the BP785-40nm filter excels in systems requiring precise spectral feature extraction:
NIR Spectral Feature Identification: Enhances signal-to-noise ratio in NIR spectroscopic analysis, material identification, and moisture sensing.
Raman Spectroscopy & Laser Cleanup: Filters background noise and isolates 785nm excitation signals in analytical optical instruments.
Biomedical & Vision Inspection: Supports NIR fluorescence imaging and automated machine vision under target NIR illumination.
Customization & OEM Capabilities
OPTOStokes provides flexible manufacturing solutions to accommodate rapid prototyping and high-volume integration. Beyond our extensive catalog of standard optics, we deliver tailored fabrication services:
Custom Geometries: Round discs, square plates, and custom cut shapes to fit your optical housing.
Mounting Options: Available unmounted or pre-assembled into threaded metal rings for seamless installation.
Guaranteed Precision & Lead Times: Supported by strict quality assurance, robust coating durability, and reliable delivery schedules.
Technical Support & Inquiries
Selecting an effective optical filter requires balancing passband throughput with deep out-of-band rejection. Whether you need immediate off-the-shelf delivery or a custom optical filter tailored to specific mechanical tolerances, our engineering team is ready to assist.
Contact our technical experts at sales@optofilters.com or request a quote online for custom dimensions and spectral curves.
Tags: optical filter custom optical filter bandpass filter NIR filter 785nm bandpass filter
