67-927 50 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=5.9mm 920nm

The 67-927 is a 50 mm diameter mounted bandpass interference filter, designed and manufactured by Edmund Optics. This filter is specifically engineered for use in optical systems that require a narrow bandwidth transmission, making it ideal for applications such as fluorescence microscopy, spectroscopy, and other precision optical measurements.

The filter's primary wavelength of transmission is 920 nm, with a full width at half maximum (FWHM) of 10 nm. This means that the filter allows light within a very specific range of wavelengths around 920 nm to pass through, while blocking out other wavelengths. The cut-on wavelength is 915 nm, and the cut-off wavelength is 925 nm, further illustrating the filter's narrow bandwidth.

The 67-927 filter is constructed with a thickness of 5.9 mm and features a circular shape, designed to fit into standard optical systems. The front and back surfaces of the filter are coated with EDM 67-793, a proprietary coating developed by Edmund Optics for enhanced performance and durability.

This filter is mounted, making it easy to integrate into existing optical systems. The mounting ensures the filter's stability and alignment, reducing the need for additional adjustments during installation. The catalog number for this item is 67-927, and it is currently in stock, according to the Edmund Optics website.