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NE2R04B Dia. 2 in Absorptive ND Filter; Optical Density 0.4

NE2R04B Dia. 2 in Absorptive ND Filter; Optical Density 0.4

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

Properties

Shape
Circular
Diameter
50.8 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5150823520020043
λ
633 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

NE2R04B Dia. 2 in Absorptive ND Filter; Optical Density 0.4

The NE2R04B is a Neutral Density Filter from Thorlabs, designed with a circular base shape and a diameter of 50.8 mm. This filter is made of n-bk7 schott material and has a thickness of 0.7 mm, making it a thin lens type. The filter features a front and back coating of tho ne04a, providing an optical density of 0.4 at a wavelength of 633 nm.

The catalog number for this item is NE2R04B, and it can be found on the Thorlabs website, where it is currently in stock. The link to the product page is provided for your convenience. This filter is sourced from Thorlabs, a reputable vendor known for its high-quality optical elements.

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