86-956 25 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 775nm

The 86-956 is a Bandpass Filter with a diameter of 25 mm, manufactured by Edmund Optics. This filter is specifically designed for a central wavelength of 775 nm and has a thickness of 3.5 mm. The Bandpass Filter is a type of optical filter that allows only a specific range of wavelengths to pass through it, while blocking other wavelengths. In this case, the 86-956 filter allows wavelengths between 750 nm and 800 nm to pass through, making it ideal for applications that require the isolation of specific wavelengths.

The filter is made from UVFS Mal-1965 material, a common choice for optical filters due to its excellent optical properties. The front and back of the filter are coated with EDM 86-944, a hard coating that enhances the filter's durability and resistance to wear and tear. This coating also helps to reduce reflections, improving the filter's overall performance.

The 86-956 filter is designed in a Thin Lens shape, which is a type of optical element that focuses light onto a single point. This shape is often used in optical systems that require precise light control, such as microscopes and telescopes.

The filter is currently in stock and can be purchased directly from the Edmund Optics website. The catalog number for this item is 86-956, and more information about the filter, including technical specifications and pricing, can be found on the product page.