67-878 50 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=3.5 mm 265nm

The 67-878 is a mounted traditional coated bandpass interference filter, designed and manufactured by Edmund Optics. This filter features a 50 mm diameter and a thickness of 3.5 mm, making it suitable for a wide range of optical applications. The filter is designed to transmit light within a specific wavelength range, while blocking other wavelengths, making it an essential component in various optical systems.

The 67-878 filter is centered at 265nm, with a full width at half maximum (FWHM) of 10nm. This specificity in wavelength transmission is achieved through the use of advanced coating technologies, which are applied to both the front and back surfaces of the filter. The coating used in this filter is EDM 67-744, which is a high-quality coating known for its durability and performance.

The filter's physical data includes a cut-on wavelength of 260nm and a cut-off wavelength of 270nm. This means that the filter begins to transmit light at 260nm and stops transmitting at 270nm. The central wavelength (CWL) of the filter is 265nm, which is the wavelength at which the filter has its maximum transmittance.

The 67-878 filter is shaped as a thin lens, which is a type of lens with a very small thickness compared to its diameter. This shape allows the filter to be easily integrated into various optical systems, without causing significant distortions or aberrations.

The filter is currently in stock and can be purchased directly from the Edmund Optics website. The product page provides more detailed specifications and application notes, which can be helpful in determining whether this filter is suitable for a particular application.