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Product Catalog 2016

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Circular Variable Neutral Density Filters

Circular Variable Neutral Density Filters
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Diameter tolerance +0/-0.1 mm
Clear Aperture >90%
Inner diameter 8.0 mm
Surface quality 60-40 S-D
Surface flatness <λ @ 632.8 nm
Parallelism error <3 arcmin
Protective chamfers <0.25 mm x 45°
Operating wavelength range 380 nm - 2000 nm (BK7)
250 nm - 2500 nm (UVFS)
Mounting Black anodized aluminum
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Attention! You can customise this product to your needs.
Circular ND filters provide continuously variable, linear attenuation of light by rotating the filter around its center. The filter can be used for white light as well as for lasers, or with any other source of light where signal attenuation is required. Transmitted intensity varies as a function of the optical density. For convenience every standard filter comes with mount as one set, but both items can be purchased separately. Standard filters come in diameters from 25 mm to 100 mm.
varna Eeconomical solution to attenuate light
varna Comes with holder as one set

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Average transmission in VIS, % Optical density range Dimensions, mm Substrate material Wavelength range, nm Delivery Product ID Price Action
90 to 10 0.04 to 1.0 Ø25 BK7 380-2000 4-6 weeks 1-CNFH-1-A025 196 $
90 to 1 0.04 to 2.0 Ø25 BK7 380-2000 4-6 weeks 1-CNFH-2-A025 202 $
90 to 0.1 0.04 to 3.0 Ø25 BK7 380-2000 4-6 weeks 1-CNFH-3-A025 209 $
90 to 10 0.04 to 1.0 Ø50 BK7 380-2000 4-6 weeks 1-CNFH-1-A050 221 $
90 to 0.1 0.04 to 3.0 Ø50 BK7 380-2000 4-6 weeks 1-CNFH-3-A050 235 $
90 to 10 0.04 to 1.0 Ø25 UVFS 250-2500 4-6 weeks 1-CNFH-1-B025 255 $
90 to 10 0.04 to 1.0 Ø50 UVFS 250-2500 4-6 weeks 1-CNFH-1-B050 267 $
90 to 0.1 0.04 to 3.0 Ø25 UVFS 250-2500 4-6 weeks 1-CNFH-3-B025 268 $
90 to 10 0.04 to 1.0 Ø100 BK7 380-2000 4-6 weeks 1-CNFH-1-A100 289 $
90 to 0.1 0.04 to 3.0 Ø100 BK7 380-2000 4-6 weeks 1-CNFH-3-A100 311 $
90 to 10 0.04 to 1.0 Ø100 UVFS 250-2500 4-6 weeks 1-CNFH-1-B100 345 $
90 to 1 0.04 to 2.0 Ø100 UVFS 250-2500 4-6 weeks 1-CNFH-2-B100 411 $
90 to 0.1 0.04 to 3.0 Ø100 UVFS 250-2500 4-6 weeks 1-CNFH-3-B100 436 $
90 to 1 0.04 to 2.0 Ø50 BK7 380-2000 4-6 weeks 1-CNFH-2-A050 228 $
90 to 1 0.04 to 2.0 Ø25 UVFS 250-2500 4-6 weeks 1-CNFH-2-B025 267 $
90 to 1 0.04 to 2.0 Ø50 UVFS 250-2500 4-6 weeks 1-CNFH-2-B050 289 $
90 to 0.1 0.04 to 3.0 Ø50 UVFS 250-2500 4-6 weeks 1-CNFH-3-B050 298 $
90 to 1 0.04 to 2.0 Ø100 BK7 380-2000 From stock 1-CNFH-2-A100 289 $

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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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