NE213B 2 in x 2 in Absorptive ND Filter; Optical Density 1.3

The NE213B is a Neutral Density (ND) Filter, measuring 2 inches by 2 inches, manufactured by Thorlabs. This filter is designed to reduce the intensity of incident light without altering its color composition, making it an ideal tool for various optical applications.

The filter is made from n-bk7 Schott, a high-quality optical glass, and features a thin lens shape. It has a thickness of 2.5 millimeters, providing durability and stability. The NE213B boasts a wavelength of 633 nanometers, which is within the visible light spectrum.

The NE213B is coated with tho ne13a on both the front and back surfaces. This coating enhances the filter's performance by absorbing a significant portion of the incident light, thereby reducing its intensity. The coating also helps to minimize reflections, ensuring optimal light transmission.

This filter is part of Thorlabs' extensive catalog and is currently in stock. Users can access more information and purchase the product via the provided weblink. The catalog number NE213B uniquely identifies this product, making it easy to find and order.