65-667 12.5 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=7.5mm 855nm

The 65-667 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 7.5 mm, making it suitable for a wide range of optical applications.

The filter's primary function is to allow light within a specific wavelength range to pass through while blocking light outside this range. In this case, the 65-667 is designed to pass light with a central wavelength (CWL) of 855 nm, with a full width at half maximum (FWHM) of 10 nm. This makes it ideal for applications that require narrowband filtering around this wavelength.

The 65-667 features a cut-on wavelength of 850 nm and a cut-off wavelength of 860 nm. This means that it begins to transmit light at 850 nm and stops transmitting at 860 nm, effectively filtering out any light outside this range.

The filter is coated on both the front and back surfaces with the EDM 65-667 coating. This coating enhances the filter's performance and durability, ensuring reliable operation in various environments.

The filter's shape is that of a thin lens, which contributes to its versatility in optical systems. It is currently in stock and available for purchase through the Edmund Optics website, as indicated by its valid weblink status.