The 64-691 50 mm Dia. Traditional Coated OD 2.0 Longpass Filter is a high-quality optical component designed for use in a variety of applications. Sourced from the reputable vendor Edmund Optics, this filter boasts a catalog number of 64-691 and is available for purchase through their official website.
This Longpass Filter features a base shape of a circle, with a diameter of 50 mm and a thickness of 5 mm, making it suitable for use in systems with similar specifications. The filter is constructed from UVFS Mal-1965 material, ensuring durability and reliability in operation.
The 64-691 filter is designed to cut on at 875 nm, allowing light of longer wavelengths to pass through while blocking shorter wavelengths. This feature makes it ideal for applications where the detection or transmission of specific wavelengths is crucial.
The filter's coating is another notable feature. Both the front and back surfaces are coated with EDM 64-677, a type of coating that enhances the filter's performance and longevity. The filter's shape is classified as Thin Lens, further expanding its potential applications.