Products Description
BP740nm Bandpass Filter | CWL 740nm, 10nm FWHM, High OD Blocking

The BP740nm bandpass filter is a precision NIR optical filter engineered for demanding near-infrared optical systems. With a tightly controlled center wavelength and narrow passband, it delivers exceptional peak transmission while providing deep out-of-band rejection across a broad spectral range. This filter is built to deliver consistent, long-lasting performance in industrial and scientific environments, making it a reliable choice for both prototype development and high-volume OEM integration.
Technical Specifications
| Parameter | Specification |
|---|---|
| Center Wavelength (CWL) | 740nm ± 2nm |
| Full Width at Half Maximum (FWHM) | 10nm ± 2nm |
| Peak Transmission | Greater than 90% at 740nm |
| Blocking Wavelength Range | 350nm to 1100nm |
| Blocking Optical Density | Greater than OD 3 |
Applications
This high-precision machine vision filter excels in a wide range of near-infrared applications. Typical use cases include NIR fill light imaging systems, industrial quality inspection equipment, LED wavelength selection and sorting, biomedical imaging setups, analytical instruments, and laser line isolation. Its stable spectral response ensures accurate detection and imaging performance even under varying operating conditions.
Customization & Service
OPTOStokes manufactures all filters with advanced thin-film coatings to ensure precise spectral performance and enhanced durability. We support full customization to match your exact system requirements, including custom dimensions, circular, square or irregular substrate shapes, and mounting ring options. With an extensive in-stock selection of standard filters and world-class manufacturing capabilities, we deliver reliable lead times and guaranteed quality for both small-batch prototypes and large-volume OEM orders.
Technical Support & Inquiry
For optical engineers and procurement teams, sourcing high-precision filters with consistent quality, reliable lead times, and responsive technical support can be a persistent challenge. At OPTOStokes, we combine deep optical coating expertise with flexible manufacturing capabilities to address these pain points directly. Our engineering team is available to assist with filter selection, spectral matching, and custom design support. To discuss your specific requirements, request a quote, or check stock availability, please contact us at sales@optofilters.com or submit an inquiry through our website.
Tags: bandpass filter narrowband filter high OD blocking NIR bandpass machine vision filter 740nm filter