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Neutral Density Glass Filter

Neutral Density Glass Filter
Neutral Density Glass Filter
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Product Code : 45
Product Specifications
  • Material
  • Color glass
  • Size
  • according to customer drawing
Product Description

Absorptive Neutral Density 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.

Capability

Material:

Neutral density color glass

Surface Quality :

60-40 scratch & dig (MIL-PRF-13830B)

Surface flatness:

1 λ per inch @ 633 nm

Parallelism:

3 arcmin

Clear Aperture:

90% of diameter

Design wavelength:

450-650 nm

Optical density Tolerance :

+/- 5% of density

Diameter Tolerance:

+0.0/-0.2 mm



Trade Information
  • FOB Port
  • Fuzhou China
  • Payment Terms
  • Telegraphic Transfer (T/T), Cash in Advance (CID), Paypal, Days after Acceptance (DA)
  • 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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