67-805 25 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=3.5 mm 239nm

The 67-805 is a 25 mm diameter mounted bandpass interference filter, designed and manufactured by Edmund Optics. This filter is specifically engineered for use at a center wavelength of 239nm, with a full width at half maximum (FWHM) of 10nm. The filter is mounted, providing a convenient and ready-to-use solution for various optical applications.

The filter's geometry includes a diameter of 25mm and a thickness of 3.5mm, making it suitable for use in systems where space is a consideration. The cut-on wavelength is 234nm, and the cut-off wavelength is 244nm, providing a narrow and precise bandpass.

The 67-805 filter features a traditional coating on both the front and back surfaces. This coating, identified as EDM 67-738, is designed to enhance the filter's performance and durability. The filter's shape is that of a thin lens, further contributing to its versatility in optical systems.

The filter is currently in stock and can be purchased directly from the Edmund Optics website using the provided weblink. The link has been verified and is valid at the time of writing.