Kreisvariable Filter

Kreisvariable Filter

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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
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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Items per page page
Average transmission in VIS, % Optical density range Dimensions, mm Substrate material Wavelength range, nm Delivery Product ID Price Action
90 to 1 0.04 to 2.0 Ø25 BK7 380-2000 Request 1-CNFH-2-A025 Request REQ
90 to 0.1 0.04 to 3.0 Ø25 BK7 380-2000 Request 1-CNFH-3-A025 Request REQ
90 to 0.1 0.04 to 3.0 Ø25 UVFS 250-2500 Request 1-CNFH-3-B025 Request REQ
90 to 1 0.04 to 2.0 Ø100 UVFS 250-2500 Request 1-CNFH-2-B100 Request REQ
90 to 0.1 0.04 to 3.0 Ø100 UVFS 250-2500 Request 1-CNFH-3-B100 Request REQ
90 to 1 0.04 to 2.0 Ø50 BK7 380-2000 Request 1-CNFH-2-A050 Request REQ
90 to 0.1 0.04 to 3.0 Ø50 BK7 380-2000 Request 1-CNFH-3-A050 Request REQ
90 to 1 0.04 to 2.0 Ø25 UVFS 250-2500 Request 1-CNFH-2-B025 Request REQ
90 to 1 0.04 to 2.0 Ø50 UVFS 250-2500 Request 1-CNFH-2-B050 Request REQ
90 to 0.1 0.04 to 3.0 Ø50 UVFS 250-2500 Request 1-CNFH-3-B050 Request REQ
90 to 1 0.04 to 2.0 Ø100 BK7 380-2000 Request 1-CNFH-2-A100 Request REQ
90 to 0.1 0.04 to 3.0 Ø100 BK7 380-2000 Request 1-CNFH-3-A100 Request REQ

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