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Linear Variable ND Filters: Fused Silica (200nm to 2600nm)


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Linear Variable ND Filters: Fused Silica (200nm to 2600nm)

The fused silica linear variable neutral density filter is used to attenuate light as the filter is translated. The filters can be used with white light as well as with low power lasers. A large finite aperture can be attenuated by translating two filters in opposite directions. The filters are available in lengths from 5mm to over 200mm. These filters are more sensitive to position at lower density values than are linear transmission filters. The useable wavelength range is from 200nm to 2600nm. For applications below 260nm, please contact our Sales Department for specific pricing & delivery.
  Product Number    Product Name  ThicknessSubstrate MaterialSurface QualityFlatnessParallelismLengthWidth
R0221Q-10 LINEAR VARIABLE ND FILTER: D= 0 to 1 2.2mm
Fused Silica
80-50 Scratch & Dig
< 1/2 Fringe / Inch @ 632.8nm
< 3 Arc Minutes
50mm
25mm
R0222Q-20 LINEAR VARIABLE ND FILTER: D= 0 to 2 2.2mm
Fused Silica
80-50 Scratch & Dig
< 1/2 Fringe / Inch @ 632.8nm
< 3 Arc Minutes
50mm
25mm
R0223Q-30 LINEAR VARIABLE ND FILTER: D= 0 to 3 2.2mm
Fused Silica
80-50 Scratch & Dig
< 1/2 Fringe / Inch @ 632.8nm
< 3 Arc Minutes
50mm
25mm
R0224Q-40 LINEAR VARIABLE ND FILTER: D= 0 to 4 2.2mm
Fused Silica
80-50 Scratch & Dig
< 1/2 Fringe / Inch @ 632.8nm
< 3 Arc Minutes
50mm
25mm
R0225Q-50 LINEAR VARIABLE ND FILTER: D= 0 to 5 2.2mm
Fused Silica
80-50 Scratch & Dig
< 1/2 Fringe / Inch @ 632.8nm
< 3 Arc Minutes
50mm
25mm
R0231Q-10 LINEAR VARIABLE ND FILTER: D= 0 to 1 2.2mm
Fused Silica
80-50 Scratch & Dig
< 1/2 Fringe / Inch @ 632.8nm
< 3 Arc Minutes
75mm
25mm
R0232Q-20 LINEAR VARIABLE ND FILTER: D= 0 to 2 2.2mm
Fused Silica
80-50 Scratch & Dig
< 1/2 Fringe / Inch @ 632.8nm
< 3 Arc Minutes
75mm
25mm
R0233Q-30 LINEAR VARIABLE ND FILTER: D= 0 to 3 2.2mm
Fused Silica
80-50 Scratch & Dig
< 1/2 Fringe / Inch @ 632.8nm
< 3 Arc Minutes
75mm
25mm
R0234Q-40 LINEAR VARIABLE ND FILTER: D= 0 to 4 2.2mm
Fused Silica
80-50 Scratch & Dig
< 1/2 Fringe / Inch @ 632.8nm
< 3 Arc Minutes
75mm
25mm
R0235Q-50 LINEAR VARIABLE ND FILTER: D= 0 to 5 2.2mm
Fused Silica
80-50 Scratch & Dig
< 1/2 Fringe / Inch @ 632.8nm
< 3 Arc Minutes
75mm
25mm

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