NE05B-A Dia. 25 mm AR-Coated Neutral Density Filter; 350-700nm; OD 0.5 AR 350-700nm

The NE05B-A is a Neutral Density Filter with a diameter of 25 mm, manufactured by Thorlabs. This filter is designed for use within the wavelength range of 350-700nm, making it suitable for a wide range of optical applications. The filter has a thickness of 0.9mm, which is thin enough to minimize optical aberrations while providing sufficient durability.

The NE05B-A filter features Anti-Reflection (AR) coatings on both the front and back surfaces. These coatings are specifically designed for the 350-700nm wavelength range, ensuring optimal performance in the intended application. The AR coatings help to reduce surface reflections, thereby increasing the overall transmission of light through the filter. This can lead to improved image quality and contrast in optical systems.

The filter is shaped as a Thin Lens, which is a type of optical component that focuses light to a point. This shape can be beneficial in certain applications where light needs to be concentrated or diverged. The filter is made from UVFS MAL-1965, a material known for its excellent optical properties and durability.

The catalog number for this item is NE05B-A, and it can be found on the Thorlabs website. The link provided is valid and indicates that the item is in stock, ensuring quick and reliable delivery for your optical needs.