39-320 50 mm Dia. Hard Coated OD 4.0 10nm Bandpass Filter; t=2 mm 266nm

The 39-320 is a Bandpass Filter, specifically designed for use in applications requiring a narrow bandwidth transmission. Sourced from Edmund Optics, this filter boasts a 50 mm diameter and a thickness of 2 mm, making it a robust and reliable choice for various optical setups.

The filter is designed to transmit light at a central wavelength (CWL) of 266nm, with a full width at half maximum (FWHM) of 10nm. This specificity makes it ideal for applications that require precise wavelength selection, such as fluorescence microscopy or laser spectroscopy. The cut-on wavelength is 261nm, and the cut-off wavelength is 271nm, further emphasizing its narrowband transmission characteristics.

The 39-320 features hard coating on both the front and back surfaces, denoted as 'edm 39-306'. This coating enhances the filter's durability and resistance to environmental factors, ensuring longevity and maintaining performance over time. The filter's shape is defined as a Thin Lens, suggesting its potential use in lens systems or as a standalone element in optical paths.

The filter's catalog number is 39-320, and it is currently in stock, according to the vendor's website. For more information or to make a purchase, users can visit the provided weblink: https://www.edmundoptics.com/p/266nm-cwl-50mm-dia-hard-coated-od-4-10nm-bandpass-filter/40059/