The 67-739 is a mounted traditional coated bandpass interference filter, designed and manufactured by Edmund Optics. This filter is characterized by its circular shape, with a diameter of 12.5 mm, and a thickness of 3.5 mm, making it suitable for a wide range of optical applications.
The filter is constructed using a unique material identified as UVFS MAL-1965, which is specifically designed for use in the ultraviolet spectrum. The filter's central wavelength (CWL) is 248nm, with a full width at half maximum (FWHM) of 10nm. This precise wavelength control ensures the filter's effectiveness in specific applications.
The 67-739 filter features a cut-on wavelength of 243nm and a cut-off wavelength of 253nm. This wavelength range is achieved through a meticulous coating process, resulting in a front coating of EDM 67-739 and a back coating of the same. This coating process enhances the filter's performance and durability.
The filter's geometry is that of a thin lens, which contributes to its versatility in various optical systems. The filter is currently in stock and available for purchase through the Edmund Optics website, as indicated by its valid weblink status.