The 84-690 is a high-performance Shortpass Filter, boasting a 12.5 mm diameter and a thickness of 1.5 mm, sourced from the renowned optical vendor, Edmund Optics. This filter is specifically designed for applications that require the removal of wavelengths longer than a specified value, in this case, 425nm.
The filter is constructed from UVFS Mal-1965 material, a choice that enhances its durability and performance in various settings. The front and back of the filter are coated with EDM 84-690, a coating that further boosts its efficiency and lifespan.
The 84-690 filter features a circular shape and a Thin Lens design, making it a versatile choice for a wide range of optical applications. It is currently in stock and available for immediate use. For more detailed information, you can refer to the product's webpage at https://www.edmundoptics.com/p/425nm-125mm-diameter-od-4-shortpass-filter-/27759/.