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84-747 25 mm Dia. Hard Coated High Performance OD 4.0 Longpass Filter; t=3 mm 675nm

84-747 25 mm Dia. Hard Coated High Performance OD 4.0 Longpass Filter; t=3 mm 675nm

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

Properties

Shape
Circular
Diameter
25 mm
Cut Off Frequency
Cut On Frequency
675 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

84-747 25 mm Dia. Hard Coated High Performance OD 4.0 Longpass Filter; t=3 mm 675nm

The 84-747 is a high-performance longpass filter, measuring 25 mm in diameter and 3 mm in thickness, sourced from Edmund Optics. This filter is designed to transmit light at wavelengths above 675 nm, making it ideal for applications that require the removal of shorter wavelengths.

The filter features a circular shape and is constructed from UVFS Mal-1965 material, ensuring durability and high-quality performance. It boasts a cut-on wavelength of 675 nm, meaning it begins to transmit light at this point, and has a cut-off wavelength of 0 nm, indicating it blocks all wavelengths below this point.

The 84-747 is coated with EDM 84-741 on both the front and back surfaces, enhancing its performance and longevity. This coating helps to reduce unwanted reflections and increase the filter's efficiency. The filter's shape is classified as a Thin Lens, further contributing to its high-performance capabilities.

For more information, including pricing and availability, please refer to the provided weblink. This link has been verified and indicates that the filter is currently in stock.

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