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84-122 50 mm Dia. Hard Coated Fluorescence Bandpass Filter; t=2 mm 775nm

84-122 50 mm Dia. Hard Coated Fluorescence Bandpass Filter; t=2 mm 775nm

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

Properties

Shape
Circular
Diameter
50 mm
Cut Off Frequency
802 nm
Cut On Frequency
748 nm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.4537624758949184
λ
775 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

84-122 50 mm Dia. Hard Coated Fluorescence Bandpass Filter; t=2 mm 775nm

The 84-122 is a Bandpass Filter, specifically designed for Fluorescence applications, offered by Edmund Optics. This filter, with a catalog number 84-122, has a diameter of 50 mm and a thickness of 2 mm, making it a substantial yet manageable component for various optical setups.

The filter's primary function is to allow light within a specific wavelength range to pass through while blocking out other wavelengths. In this case, the Cut-on wavelength is 748 nm, and the Cut-off wavelength is 802 nm, with the Central Wavelength at 775 nm. This means it is particularly effective at filtering light in the near-infrared spectrum.

The filter is made from UVFS Mal-1965 material, a common choice for its optical properties and durability. The front and back of the filter are coated with EDm 84-090, a hard coating that enhances the filter's longevity and resistance to wear and tear, making it suitable for demanding environments.

The filter's shape is that of a Thin Lens, suggesting it may have some light-focusing capabilities, although this is not its primary function. The filter is currently in stock and available for purchase through the provided weblink.

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