NDUV540A Dia. 0.5 in SM05-Threaded Mount; UVFS Reflective ND Filter; OD 4.0

The NDUV540A is a Neutral Density Filter from Thorlabs, designed with a UVFS reflective coating and an Optical Density (OD) of 4.0. This filter is circular in shape, with a diameter of 12.7 mm and a thickness of 1 mm, making it a compact and convenient option for various optical applications.

The filter features a UVFS reflective coating on both the front and back, which is identified by the catalog number 'uvfs mal- 1965'. This coating is designed to provide superior performance in the ultraviolet (UV) region of the spectrum, making it ideal for applications that require UV light filtration.

The NDUV540A is designed with a Thin Lens shape and is compatible with SM05-threaded mounts. This versatility allows it to be easily integrated into existing optical systems. The filter's availability is indicated by its 'Valid - in stock' status on the Thorlabs website, ensuring quick and efficient procurement for your optical needs.

For more detailed information, you can refer to the product's dedicated webpage at 'https://www.thorlabs.com/thorproduct.cfm?partnumber=NDUV540A'. This page provides comprehensive specifications, usage guidelines, and purchasing options, making it a valuable resource for those considering the NDUV540A for their optical projects.