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Home » Neutral Density Filter (ND Filter) » Circular Variable ND Filters: Fused Silica (200nm to 2500nm)
 


Circular Variable ND Filters: Fused Silica (200nm to 2500nm)


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Circular Variable ND Filters: Fused Silica (200nm to 2500nm)

The fused silica circular variable neutral density filter wheel is a device to linearly attenuate light as the filter is rotated. The filter can be used for white light as well as for lasers. A large finite aperture can be attenuated by counter rotating two filters in series. Sizes are available from 25 mm to over 200 mm in diameter. The useable wavelength range is from 200nm to 2500nm. For applications below 260nm, please contact our Sales Department for specific pricing & delivery.
  Product Number    Product Name  ThicknessSubstrate MaterialSurface QualityFlatnessParallelismOutside DiameterInside Diameter
R04400-10 CVND: ND=0 to 1 2.2mm
 Fused Silica
 80-50 Scratch & Dig
 < 2 Fringes / Inch @ 632.8nm
 < 3 Arc Minutes
 25mm
 7.5mm
R04400-20 CVND: ND=0 to 2 2.2mm
 Fused Silica
 80-50 Scratch & Dig
 < 2 Fringes / Inch @ 632.8nm
 < 3 Arc Minutes
 25mm
 7.5mm
R04400-30 CVND: ND=0 to 3 2.2mm
 Fused Silica
 80-50 Scratch & Dig
 < 2 Fringes / Inch @ 632.8nm
 < 3 Arc Minutes
 25mm
 7.5mm
R04400-40 CVND: ND=0 to 4 2.2mm
 Fused Silica
 80-50 Scratch & Dig
 < 2 Fringes / Inch @ 632.8nm
 < 3 Arc Minutes
 25mm
 7.5mm
R04400-50 CVND: ND=0 to 5 2.2mm
 Fused Silica
 80-50 Scratch & Dig
 < 2 Fringes / Inch @ 632.8nm
 < 3 Arc Minutes
 25mm
 7.5mm
R04410-10 CVND: ND=0 to 1 2.2mm
 Fused Silica
 80-50 Scratch & Dig
 < 2 Fringes / Inch @ 632.8nm
 < 3 Arc Minutes
 50mm
 7.5mm
R04410-20 CVND: ND=0 to 2 2.2mm
 Fused Silica
 80-50 Scratch & Dig
 < 2 Fringes / Inch @ 632.8nm
 < 3 Arc Minutes
 50mm
 7.5mm
R04410-30 CVND: ND=0 to 3 2.2mm
 Fused Silica
 80-50 Scratch & Dig
 < 2 Fringes / Inch @ 632.8nm
 < 3 Arc Minutes
 50mm
 7.5mm
R04410-40 CVND: ND=0 to 4 2.2mm
 Fused Silica
 80-50 Scratch & Dig
 < 2 Fringes / Inch @ 632.8nm
 < 3 Arc Minutes
 50mm
 7.5mm
R04410-50 CVND: ND=0 to 5 2.2mm
 Fused Silica
 80-50 Scratch & Dig
 < 2 Fringes / Inch @ 632.8nm
 < 3 Arc Minutes
 50mm
 7.5mm

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