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NDUV40B Dia. 25 mm Unmounted UVFS Reflective ND Filter; OD 4.0

NDUV40B Dia. 25 mm Unmounted UVFS Reflective ND Filter; OD 4.0

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

Properties

Shape
Circular
Diameter
25 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

NDUV40B Dia. 25 mm Unmounted UVFS Reflective ND Filter; OD 4.0

The NDUV40B is a circular Neutral Density Filter, unmounted, with a diameter of 25 mm and a thickness of 1 mm. This filter is sourced from Thorlabs, a renowned vendor in the optical industry. It is designed with the UVFS-ML1965 material, which is known for its exceptional optical properties.

The filter features a coating on both the front and back surfaces, specifically the THORNDUV OD4 coating. This coating is engineered to provide a Neutral Density of 4.0, which is equivalent to a 100,000-fold reduction in transmittance. This makes the NDUV40B an ideal choice for applications that require significant light reduction while maintaining color neutrality.

The NDUV40B filter is shaped in a Thin Lens form, which is beneficial for applications that require minimal optical path deviation. The filter's geometry and shape make it compatible with various optical systems, enhancing its versatility.

For more information and to check the current stock status, you can visit the product's webpage at https://www.thorlabs.com/thorproduct.cfm?partnumber=NDUV40B.

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