84-656 25 mm Dia. Traditional Coated OD 2.0 Shortpass Filter; t=3mm 1600nm

The 84-656 is a 25 mm diameter Shortpass Filter with a thickness of 3mm, designed for use in optical systems that require the blocking of specific wavelengths while allowing others to pass through. This filter, sourced from Edmund Optics, features a catalog number of 84-656 and is available for purchase directly from their website, with a current status of being in stock.

The Shortpass Filter type is characterized by its ability to transmit wavelengths shorter than a specified value while blocking longer wavelengths. In this case, the 84-656 has a cut-on wavelength of 0 nm and a cut-off wavelength of 1600 nm, making it suitable for applications where the control of infrared light is crucial.

The filter is made from UVFS Mal-1965 material, a common choice for optical components due to its excellent transmission properties and durability. It features a circular base shape, a standard in optical systems due to its ease of alignment and integration.

The 84-656 is coated with EDM 84-648 on both the front and back surfaces, enhancing its performance and longevity. This coating helps to reduce surface reflections and increase transmission, improving the overall efficiency of the optical system.

The filter's geometry is defined by its diameter of 25 mm and its thickness of 3 mm, dimensions that are carefully controlled during manufacturing to ensure precise optical performance. The shape of the filter is defined as a Thin Lens, indicating that it has been designed to minimize optical aberrations and distortions.