Metal Coating Neutral Density Filter

Metal Coating Neutral Density Filter
Metal Coating Neutral Density Filter
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Product Code : 46
Product Specifications
  • Material
  • Color glass
  • Size
  • according to customer drawing
Product Description

Metal Coating Neutral Density Filter

Metal coating neutral density filter  is the type of ND filter to reduce the transmittance by reflecting the incident light.

 Metal coating neutral density filters have constant density values across the surface. The transmission to reflection ratio varies with density selection. In stacks, the total density is the sum of each filters density. ND filters are used primarily for the attenuation of light over a wide spectral range. They are often used in laser and photometer applications, where excessive power can cause damage or inaccurate results. Orient mirrored side toward source at 0o angle of incidence.



NG1, NG4, NG9, or NG11

Dimension tolerance:


Clear aperture:

>80% of dimension


Up to 10 arc seconds

Surface quality:


Surface flatness:

< lambda/4 subject to the size

Transmitted wavefront error:

< lambda/10 @ 633nm

Optical density tolerance:



AR coating

Trade Information
  • FOB Port
  • Fuzhou China
  • Payment Terms
  • Paypal, Telegraphic Transfer (T/T), Days after Acceptance (DA), Cash in Advance (CID)
  • Supply Ability
  • 20000 Per Month
  • Delivery Time
  • 5 Week
  • Sample Available
  • Yes
  • Sample Policy
  • Sample costs shipping and taxes has to be paid by the buyer
  • Packaging Details
  • Provide our standard package
  • Main Domestic Market
  • All India
  • Certifications
  • N/A
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