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FNDU-20C02-70 20 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm

FNDU-20C02-70 20 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm

Type
Filter
Subtype
Neutral Density Filter
Brand
OptoSigma
Product webpage
OptoSigma products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
20 mm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.4877929746541196
λ
300 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

FNDU-20C02-70 20 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm

OptoSigma's FNDU-20C02-70 is a 20 mm diameter, unmounted UVFS reflective neutral density filter, designed for use in the ultraviolet spectrum. This filter is part of the OptoSigma family of reflective neutral density filters, which are known for their high-quality optical performance and durability.

The filter is made from UVFS material, which is specifically designed for use in the ultraviolet spectrum, providing excellent transmission and blocking characteristics in this range. The filter has a thickness of 2mm, providing robustness and stability during use.

The front and back surfaces of the filter are coated with Opt FNDU-70, a proprietary coating developed by OptoSigma. This coating provides additional protection for the filter, reducing the risk of damage from exposure to light, dust, or other environmental factors.

The filter is designed in a thin lens shape, which helps to minimize optical distortions and provides a clear, undistorted view of the subject. The circular geometry of the filter allows it to be easily mounted in various optical systems.

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