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47-208 25 mm Dia. UV-VIS Metallic Based Neutral Density Filter; OD 1.3 250-700nm

47-208 25 mm Dia. UV-VIS Metallic Based Neutral Density Filter; OD 1.3 250-700nm

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

Properties

Shape
Circular
Diameter
25 mm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.458448271212196
λ
588 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

47-208 25 mm Dia. UV-VIS Metallic Based Neutral Density Filter; OD 1.3 250-700nm

The 47-208 is a Neutral Density Filter with a 25 mm diameter, sourced from the reputable optical vendor, Edmund Optics. This filter is designed for use in the UV-VIS spectrum, specifically catering to wavelengths between 250 and 700nm.

The filter boasts an Optical Density (OD) of 1.3, which translates to approximately a 20% transmission rate. This makes it an ideal choice for applications requiring a significant reduction in light intensity, without altering the color balance of the incident light.

The filter is constructed with a Metallic Based Neutral Density material, ensuring consistent attenuation across the entire UV-VIS spectrum. This is crucial in applications where color accuracy is paramount, such as in imaging or spectroscopy.

The geometry of the filter includes a diameter of 25mm and a thickness of 3mm, making it compatible with most optical systems. The front and back surfaces of the filter are coated with EDM 48-621, a coating type known for its durability and resistance to environmental factors.

The filter's shape is classified as a Thin Lens, which is beneficial in applications where minimal optical path deviation is required. This filter is currently in stock and available for purchase through the Edmund Optics website.

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