BP275 Narrow Bandpass Filter | 275nm CWL, 10nm FWHM, High OD4 Blocking

BP275 Narrow Bandpass Filter | 275nm CWL, 10nm FWHM, High OD4 Blocking

The BP275 is a precision-engineered narrow bandpass filter optimized for deep ultraviolet spectral applications. With a center wavelength of 275 nm and a 10 nm full width at half maximum, it delivers targeted transmission within the UV-C band while providing robust out-of-band rejection. Fabricated using advanced thin film coating technology, this filter achieves optical density greater than 4 blocking across the 200 nm to 1100 nm spectral range, ensuring excellent signal-to-noise performance for demanding detection systems. It is an ideal optical component for analytical instruments and UV spectroscopy setups where precise wavelength selection is critical. As part of OPTOStokes’ comprehensive UV filters portfolio, it adheres to world-class quality standards for both optical performance and long-term durability.

Technical Specifications

Applications

This 275 nm UV bandpass filter is engineered for use cases that demand precise ultraviolet wavelength selection and high stray light suppression. Common applications include:

• UV analytical spectroscopy and absorbance detection systems

• Environmental monitoring and water quality analysis instruments

• Fluorescence detection and life science research equipment

• Biomedical imaging and in-vitro diagnostic systems

• Industrial surface inspection and quality control setups

• Laser beam purification and spectral shaping systems

Customization & Service

OPTOStokes provides both standard in-stock units and full customization support for the BP275 bandpass filter. We can manufacture filters in custom form factors including circular, square, and irregular geometries to match your specific optical assembly requirements. Custom mounting rings and mechanical housing options are also available upon request. All products are built to world-class precision standards, with controlled lead times and rigorous quality inspection across every production step. Our extensive in-stock selection enables fast delivery for standard specifications, while custom orders are backed by our experienced optical engineering team to meet your exact performance criteria.

Technical Support & Enquiry

For R&D engineers and procurement managers, sourcing reliable UV optical filters with consistent spectral performance and stable delivery schedules can present significant challenges. Many suppliers face limitations including long lead times, restricted customization capacity, and insufficient technical support for complex spectral requirements. At OPTOStokes, we combine decades of optical coating expertise with responsive customer support to resolve these pain points. Our technical team is available to assist with filter selection, spectral performance validation, and custom design consultation. To discuss your specific project requirements, request a formal quote, or check current stock availability, please reach out to us at sales@optofilters.com or submit an enquiry directly through our website.