NE530B-A Dia. 0.5 in AR-Coated Neutral Density Filter; 350-700nm; OD 3.0 AR 350-700nm

The NE530B-A is a Neutral Density Filter, part of the extensive catalog of optical elements offered by Thorlabs. This circular filter, with a diameter of 12.7 mm and a thickness of 2.1 mm, is designed for use in optical systems that require neutral density filtration.

The filter features AR coatings on both the front and back surfaces, specifically the tho ne30b-a coating. This coating is optimized for the wavelength of 633 nm, ensuring minimal reflection and maximum transmission. The AR coating also extends the filter's usable wavelength range to 350-700 nm, making it suitable for a wide range of applications.

The NE530B-A filter has a Sub Type of Neutral Density Filter, indicating that it reduces the intensity of incident light without altering its color composition. The filter's Optical Density (OD) is 3.0, which means it attenuates the light by a factor of 1000. This makes it a powerful tool for managing light intensity in high-powered optical systems.

The filter's geometry and shape are designed for easy integration into optical systems. It has a Thin Lens shape, which minimizes optical aberrations and simplifies alignment. The filter's Material ID, uvfs mal- 1965, provides additional information about its composition and manufacturing process.