62-663 50 mm Dia. UV-VIS Metallic Based Neutral Density Filter; OD 0.5 250-700nm

This product is a Neutral Density Filter, specifically the 62-663 model, offered by the renowned optical vendor, Edmund Optics. The filter boasts a 50 mm diameter and a thickness of 5 mm, making it a substantial yet manageable component for various optical applications.

The filter is designed with a UV-VIS metallic base, indicating its suitability for use in the ultraviolet and visible light spectrums, which span from 250 to 700 nanometers. This broad range makes it a versatile choice for numerous optical setups.

The Neutral Density Filter features an Optical Density (OD) of 0.5. This value signifies that the filter reduces the intensity of the incident light by a factor of 10^0.5, or approximately 3.16. This reduction is uniform across the entire spectrum, ensuring no color bias is introduced.

The filter's coating is another notable feature. Both the front and back surfaces are coated with EDM 48-619, a material that likely enhances the filter's performance and durability. However, the specifics of this coating are not detailed in the provided data.

The filter's shape is described as a Thin Lens, suggesting a design that minimizes optical aberrations and distortions. This feature is particularly beneficial in precision optical applications.