IMAGE QUALITY METALLIC NEUTRAL DENSITY FILTERS UV-VIS-NIR

Neutral density (ND) filters are useful in a number of applications such as attenuators for broadband spectral sources, partial reflectors for light balancing applications and for use as neutral beamsplitters. Metallic type neutral density filters obtain their optical density by depositing a metal alloy coating onto a specific type of substrate which is determined by the wavelength region of interest. TWF 1/4 wave. Parallelism < 5 arcsec. UV Grade Fused Silica substrates available in custom sizes