Products Description

BP313nm UV Bandpass Filter | CWL 313nm±3nm, FWHM 15±3nm, 2.0mm
The OPTOStokes BP313nm is a high-precision bandpass filter optimized for ultraviolet food detection and inspection applications. Engineered with advanced ion-assisted thin film coating technology, it provides transmission greater than 70 percent across the 310–315nm range, with a center wavelength of 313nm ±3nm and a full width at half maximum of 15±3nm. This 2.0mm thick filter delivers reliable high OD blocking across broad spectral ranges with graded attenuation, ensuring clean UV signal isolation for high-accuracy food analysis systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | BP313nm |
| Center Wavelength (CWL) | 313nm ±3nm |
| Transmission Band | 310–315nm, transmission greater than 70 percent |
| Full Width at Half Maximum (FWHM) | 15±3nm |
| Blocking Range | 200–680nm (transmission less than 1 percent); 680–780nm (transmission less than 9 percent); 780–1100nm (transmission less than 1 percent) |
| Angle of Incidence (AOI) | 0 degree |
| Substrate Thickness | 2.0mm |
Applications
This high-performance UV filters is specifically engineered for applications requiring precise spectral selection at 313nm, a critical wavelength for food safety and quality testing. Its graded blocking design and stable UV performance make it ideal for:
Food safety detection and microbial inspection systems
Food composition analysis and quality control
Agricultural product grading and safety screening
UV spectroscopic analysis for food industry
Packaging material integrity inspection
Industrial on-line food testing equipment
Customization & Service
OPTOStokes offers comprehensive custom optical filter solutions to meet your exact food testing requirements. We manufacture UV bandpass filters in standard circular, square and custom irregular shapes, with optional precision mounting rings for seamless integration into your optical assemblies. Our extensive in-stock inventory ensures fast shipping for standard specifications, while our advanced cleanroom manufacturing capabilities deliver custom orders with reliable, predictable lead times. All products are manufactured to world-class quality standards and undergo rigorous 100 percent optical testing before shipment.
Pain Points & CTA
Food testing teams often face critical challenges: inconsistent UV wavelength accuracy, insufficient broadband blocking performance, and long lead times for custom ultraviolet components. These issues can reduce detection sensitivity, increase false result rates, and delay product validation schedules. At OPTOStokes, we solve these problems with our extensive ready-to-ship inventory, precision UV coating technology, and dedicated technical support team. Whether you need a single prototype for testing or high-volume production runs, we deliver precision optical components on time, every time.
For detailed datasheets, volume pricing, or to discuss your specific filter requirements, contact our expert team at sales@optofilters.com or submit an inquiry through our website today.
Tags: 15nm FWHM high OD blocking 2.0mm 0 degree AOI BP313nm 313nm bandpass filter UV filter food detection