14-921 50 mm Dia. First Surface UV Bandpass Filter; t=1.5 mm 253.7nm

This is a 14-921 First Surface UV Bandpass Filter, sourced from the reputable optical components vendor, Edmund Optics. The filter boasts a 50 mm diameter and a thickness of 1.5 mm, making it suitable for a wide range of applications.

The filter is designed to transmit light in the ultraviolet (UV) spectrum, specifically at a center wavelength (CWL) of 253.7 nm. This is achieved through the use of a specialized coating, denoted as 'edm 11-991' on both the front and back surfaces. This coating ensures a high transmission rate for UV light at the specified wavelength while effectively blocking other wavelengths.

The filter's bandpass characteristics are defined by its cut-on and cut-off wavelengths, which are 241.2 nm and 266.2 nm, respectively. This means that the filter allows the passage of UV light between these two wavelengths, providing a narrow band of transmission.

The filter is shaped as a thin lens, which can be beneficial in certain optical systems where minimal thickness is required. It is currently in stock and available for immediate purchase, as indicated by its weblink status.

For more detailed information, including technical specifications and purchasing options, please refer to the provided weblink.