5CGA-645 12.7 mm Dia. High Performance Colored Glass Alternative Longpass Filter 645nm

The 5CGA-645 is a high-performance colored glass alternative longpass filter, offered by the renowned optical components vendor, MKS/Newport. This filter is designed with a circular base shape, featuring a diameter of 12.7 mm and a thickness of 1.1 mm, making it a compact and convenient option for various optical applications.

The filter's primary function is to allow light transmission above a specified wavelength (cut-on) while blocking light below that point (cut-off). In this case, the 5CGA-645 has a cut-on wavelength of 645nm, making it ideal for applications where longer wavelengths need to be isolated or emphasized. The cut-off wavelength is 0nm, indicating that this filter will block all wavelengths below its specified cut-on point.

This filter is made from UVFS Mal-1965 material, a high-quality glass alternative known for its durability and optical clarity. The filter is coated on both sides with the New 20CGA-645 coating, which further enhances its performance and longevity.

The 5CGA-645 is available in a thin lens shape, which is beneficial for applications where minimizing optical path length is crucial. This filter is currently in stock and can be purchased directly from the Newport website using the provided catalog number.