67-810 25 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=3.5 mm 260nm

The 67-810 is a 25 mm diameter mounted traditional coated bandpass interference filter, with a thickness of 3.5 mm and a central wavelength of 260nm. This filter is sourced from Edmund Optics, a leading vendor in the optical industry, and is available for purchase through their official website.

The filter is designed with a base shape of a circle, and it is made from a unique material identified as UVFS MAL-1965. This material, combined with the filter's bandpass properties, makes it ideal for applications that require precise wavelength selection within the ultraviolet spectrum.

The physical data of the filter includes a cut-on wavelength of 255nm and a cut-off wavelength of 265nm, with a full width at half maximum (FWHM) of 10nm. This means that the filter allows light within a narrow band of wavelengths around the central wavelength to pass through, while blocking out light at other wavelengths.

The filter is coated on both the front and back surfaces with EDM 67-743, a proprietary coating developed by Edmund Optics. This coating enhances the filter's performance by reducing reflections and increasing transmission, thereby improving the overall quality of the light that passes through the filter.

The filter's shape is that of a thin lens, which not only contributes to its compact design but also minimizes optical aberrations. This makes the 67-810 an excellent choice for applications that require high-precision optical filtering.