67-131 50 mm Dia. Mounted Hard Coated OD 4.0 Notch Filter 980nm

The 67-131 is a Notch Filter with a 50 mm diameter and a thickness of 5 mm, offered by the renowned optical components vendor, Edmund Optics. This filter is specifically designed to block light in the 980 nm wavelength region while transmitting light at other wavelengths.

The filter is made from UVFS Mal-1965 material, a common choice for optical filters due to its excellent optical properties. It features a Notch Filter Sub Type, which is ideal for applications where a narrow band of wavelengths needs to be blocked, while the rest of the spectrum is transmitted.

The 67-131 filter has a circular shape, a standard in the industry for its ease of integration into various optical systems. The front and back surfaces of the filter are coated with EDm 67-113, a hard coating that enhances the filter's durability and resistance to environmental factors, ensuring long-lasting performance.

The filter's geometry is defined by its 50 mm diameter, which is suitable for use in systems with moderate aperture sizes. The thickness of 5 mm is typical for mounted filters, providing structural rigidity while minimizing the impact on the overall optical path length.

The filter's physical data includes a Center Wavelength (CWL) of 980 nm, which is the wavelength at which the filter's transmission is minimized. This makes the 67-131 an ideal choice for applications where light around the 980 nm region needs to be suppressed.