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Product Catalog 2017

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Neutral Density Absorption Type Filters

Neutral Density Absorption Type Filters
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Material Neutral density glass
Diameter tolerance +0/-0.2 mm
Clear aperture >90%
Surface quality 60-40 S-D
Surface flatness <λ @ 632.8 nm
Parallelism error <3 arcmin
Protective chamfers <0.25 mm x 45°
Designed for VIS range (400-700 mm)
Uncoated, unmounted
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Attention! You can customise this product to your needs.
Neutral density laser radiation filters with custom transmittance, dimensions and shape. Neutral density absorption type filters decrease intensity of light without altering the relative spectral distribution of the energy. Attenuation is accomplished by using an absorbing type glass.

Download Absorptive neutral density filters transmission curves
varna Neutral Density filter is an economical solution to attenuate light

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Average transmission in VIS, % Optical density Dimensions, mm Delivery Product ID Price Action


You can customise this product to your needs. If you do not find suitable specifications for your application please contact us for custom solution.

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