FBR-ND30 25.4 mm Dia. Optical Crown Glass Metallic Neutral Density Filter 400-2000nm

The FBR-ND30 is a high-quality Neutral Density Filter, part of the extensive catalog offered by MKS/Newport. This filter is designed with a circular base shape, featuring a diameter of 25.4 mm and a thickness of 3 mm, making it compatible with a wide range of optical systems.

The FBR-ND30 is manufactured using optical crown glass, a material known for its excellent optical properties, low dispersion, and high transmittance. This material ensures that the filter provides accurate and consistent attenuation across the entire spectral range of 400-2000nm, without introducing any unwanted color casts.

The filter is coated with a new FBR-ND30 coating on both the front and back surfaces. This coating enhances the filter's performance by reducing surface reflections and increasing transmission, thereby improving the overall signal-to-noise ratio of the optical system. The coating also provides excellent environmental stability, ensuring the filter maintains its performance even under harsh conditions.

The FBR-ND30 features a thin lens shape, which helps to minimize unwanted optical aberrations and ensures that the filter can be easily integrated into various optical systems. The filter's neutral density properties make it an ideal choice for applications where a controlled reduction in light intensity is required, such as in high-power laser systems, astronomical observations, or in various imaging applications.