This is the FF01-441/511/593/684/817-25 25 mm Dia. 441/511/593/684/817nm BrightLine penta-Band Bandpass Filter, a high-quality optical component sourced from Semrock. This filter is designed for use in a wide range of applications that require precise wavelength selection.
The filter is a Bandpass type, which means it allows transmission of light within a specific range of wavelengths while blocking light outside this range. The center wavelength (CWL) of this filter is 441nm, making it ideal for applications that require the use of this specific wavelength.
The filter is circular in shape with a diameter of 25mm and a thickness of 2mm, making it compatible with most optical systems. The physical data of the filter includes a cut-on wavelength of 422.95nm and a cut-off wavelength of 459.05nm.
The filter is made from UVFS Mal-1965 material and features a Thin Lens shape. The coating on both the front and back of the filter is Sem FF01441511593684. The filter's catalog number is FF01-441/511/593/684/817-25, and it can be found on Semrock's official website. The link provided is valid and indicates that the filter is currently in stock.