NE520B-B Dia. 0.5 in AR-Coated Neutral Density Filter; 650-1050nm; OD 2.0 AR 650-1050nm

The NE520B-B is a Neutral Density Filter, part of Thorlabs' extensive catalog of optical elements. This circular filter, with a diameter of 12.7 mm and a thickness of 1.4 mm, is designed for use in the 633 nm wavelength range. It boasts a front and back coating of tho ne20b-b, providing excellent neutral density performance.

The filter's primary function is to reduce the intensity of incident light without altering its color composition. This is particularly useful in high-intensity applications where light levels need to be managed to prevent saturation or damage to sensitive optical components. The NE520B-B offers an Optical Density (OD) of 2.0, which corresponds to a 100:1 reduction in light intensity.

The AR coating on both sides of the filter, specifically designed for the 650-1050 nm range, minimizes reflection and enhances transmission, ensuring optimal performance in its intended wavelength range. This coating also helps to reduce ghosting and other optical artifacts, contributing to overall image quality.

In terms of shape, the NE520B-B follows a Thin Lens design, which is beneficial in maintaining the overall optical integrity of the system it is incorporated into. This filter is currently in stock and available for immediate use, making it a reliable choice for your optical needs.