NDW03B Dia. 25 mm Reflective ND Filter; Optical Density 0.3

The NDW03B is a Neutral Density Filter with a diameter of 25 mm, designed for use in optical systems that require light attenuation. Manufactured by Thorlabs, a leading vendor in the field of optical components, this filter is made of N-BK7 Schott glass, a material known for its excellent optical properties.

The filter features a thin lens shape, with a thickness of 1 mm, making it suitable for applications where space is a constraint. It boasts a front and back coating of THo NDW03B, which enhances its performance by reducing surface reflections and improving transmission.

This specific filter has an optical density of 0.3, which corresponds to a transmission of approximately 71%. This makes it ideal for applications where a moderate reduction in light intensity is required. The filter's properties are consistent at a wavelength of 633 nm, making it suitable for use in systems operating at this wavelength.

The NDW03B is currently in stock and available for purchase through the Thorlabs website, as indicated by its valid weblink status. With its high-quality construction, reliable performance, and versatile specifications, the NDW03B is a valuable addition to any optical system.