67-931 50 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=5.9mm 970nm

The 67-931 is a Bandpass Filter with a circular base shape and a 50 mm mounted diameter, sourced from the reputable vendor Edmund Optics. This filter is designed to transmit light within a specific range of wavelengths while blocking other wavelengths, making it ideal for applications that require narrowband light transmission.

The filter's primary wavelength is 970 nm, with a full width at half maximum (FWHM) of 10 nm. The cut-on wavelength is 965 nm, and the cut-off wavelength is 975 nm, indicating a narrow and precise wavelength transmission range. This makes the filter particularly suitable for applications that demand high spectral purity and precise wavelength selection.

The filter's geometry includes a diameter of 50 mm and a thickness of 5.9 mm, providing sufficient mechanical strength and optical path length. The material ID for this filter is UVFS MAL-1965, although further details about the material composition are not provided in the item data.

The filter features a thin lens shape and is coated on both the front and back surfaces with EDM 67-797, a traditional coating that enhances the filter's performance and durability. This coating ensures optimal light transmission, minimal reflection, and protection against environmental factors such as dust and moisture.

The 67-931 filter is currently in stock and available for purchase through the Edmund Optics website, as indicated by its weblink status. For more information and specifications, users are encouraged to visit the provided weblink.