China Absorptive Neutral Density Filters

Absorptive Neutral Density (ND) Filters
Product Description:
Attenuates Visible Light Via Absorption, Rather than ReflectionMultiple Filters Can be Stacked for Increased BlockingOptical Densities from 0.1 to 4.0 are Available

These filters possess level spectral transmittance characteristics in the visible region and attenuate light by absorption with minimal reflection. Typically, neutrality and density of absorptive filters are a function of the material and the thickness. Since Hoya neutral density filters are held to a specific optical density, the thickness is only a function of the glass type. They are useful in light control applications for measuring instruments and exposure control in imaging. Spectral variations occur as optical density increases.
Specification:

Glass materialND filter glassRing materialAluminumGlass thickness1-2mmRing thickness5.5mm(including thread)Diameters46,49,52,55,58,62,67,72,77,82ND filterUV,ND4,ND8,ND16,CPL polarizationAll index according to the customers demands.

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Our Company & Workshop:
NMOT Advanced Optics, with its deep technological expertise, is a valuable partner for its customers in developing products and spectral solutions for applications in optics. With a product chain of optical glasses, special materials and components, we can offer customized production to meet your requirement.Advanced processing equipment and complete production system effectively control every aspect of the product process to ensure product quality, also reduce losses and costs.

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