67-888 50 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=6.9 mm 320nm

The 67-888 is a 50 mm diameter mounted bandpass interference filter, designed and manufactured by Edmund Optics. This filter is specifically engineered for applications that require precise wavelength selection and high transmission in the ultraviolet (UV) range.

The filter's primary feature is its narrow bandpass, centered at 320nm with a full width at half maximum (FWHM) of 10nm. This means it allows light primarily in this narrow range to pass through, effectively blocking out unwanted wavelengths. The cut-on wavelength is 315nm, and the cut-off wavelength is 325nm, further enhancing its selectivity.

The 67-888 filter is made from UVFS Mal-1965 material, a type of optical glass known for its excellent transmission in the UV range. The filter has a thickness of 6.9mm, providing robustness and durability.

The filter is coated on both sides with EDM 67-754, a proprietary coating developed by Edmund Optics. This coating enhances the filter's performance by reducing surface reflections and increasing transmission.

The filter's shape is that of a thin lens, making it suitable for use in various optical systems. It is currently in stock and available for immediate purchase through the Edmund Optics website.