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64-638 50 mm Dia. Traditional Coated OD 2.0 Longpass Filter; t=5mm 725nm

64-638 50 mm Dia. Traditional Coated OD 2.0 Longpass Filter; t=5mm 725nm

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

Properties

Shape
Circular
Diameter
50 mm
Cut Off Frequency
Cut On Frequency
725 nm

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

64-638 50 mm Dia. Traditional Coated OD 2.0 Longpass Filter; t=5mm 725nm

The 64-638 is a Longpass Filter, sourced from Edmund Optics, with a 50 mm diameter and a thickness of 5 mm. This filter is designed for use in optical systems where the primary requirement is to transmit light with wavelengths longer than a specified value, while blocking shorter wavelengths.

The 64-638 filter features a cut-on wavelength of 725 nm, meaning it begins to transmit light at this wavelength and beyond. The cut-off wavelength, which is the point at which the filter starts to block light, is 0 nm in this case, indicating that it allows all wavelengths shorter than 725 nm to pass through.

This filter is made from UVFS Mal-1965 material and has a circular shape. It is coated on both the front and back with EDM 64-622, a type of coating that enhances its performance and durability. The filter's shape is described as Thin Lens, suggesting it may have lens-like properties.

According to the vendor's information, this item is in stock and available for immediate purchase. For more details, including pricing and delivery information, please refer to the provided web link: https://www.edmundoptics.com/p/725nm-50mm-diameter-od-2-longpass-filter/19344/

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