UItraopto Precision Optics Co. Ltd. 20nm bandpass filters are core components for optical detection and analysis. They are available in stock and fully customizable in all specifications. The center wavelengths cover the full range from 310nm to 1120nm, suitable for applications in fluorescence, spectroscopy, biochemical analysis instruments, life sciences, education and research, and more. With their excellent performance of high transmittance and deep cut-off, they provide stable optical filtering solutions for various optical experiments and industrial inspections.
This series of filters are available in two mainstream sizes: 12.7mm and 25.4mm (both with aluminum rings), and all sizes are matched with complete part numbers. The full width at half maximum (FWHM) includes multiple options such as 20±3nm, 25±4nm, 30±5nm, and 35±5nm. The transmittance is over 95% for most specifications, and for some short-wave adapted specifications, it is over 90%/70%, meeting the light transmission requirements of different scenarios. The cut-off range of the products covers 200-1100nm/1200nm, with the maximum optical density (OD) value reaching over OD7, and the regular specifications are over OD4/OD5, demonstrating excellent stray light rejection capabilities and effectively ensuring the filtering accuracy.
The company has a mature filter production process and can customize bandpass filters with different center wavelengths, FWHM, sizes, and OD values according to the actual application needs of customers, fully matching the personalized filtering requirements of various optical systems.
