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87-812 12.5 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 1050nm

87-812 12.5 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 1050nm

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

Properties

Shape
Circular
Diameter
12.5 mm
Cut Off Frequency
1062.5 nm
Cut On Frequency
1037.5 nm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.4497997592599141
λ
1050 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

87-812 12.5 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 1050nm

The 87-812 is a Bandpass Filter with a diameter of 12.5 mm and a thickness of 3.5 mm, sourced from the reputable optical vendor, Edmund Optics. This filter is specifically designed for a central wavelength (CWL) of 1050 nm, making it suitable for applications that require precise wavelength selection within this range.

The filter is hard coated on both the front and back surfaces with the coating type edm 87-812. This coating enhances the filter's durability and performance, ensuring reliable operation even under demanding conditions. The cut-on wavelength is 1037.5 nm, and the cut-off wavelength is 1062.5 nm, providing a narrow bandwidth of 25 nm. This characteristic is particularly beneficial in applications where stray light suppression and high transmission are critical.

The 87-812 filter features a circular shape and a thin lens geometry. It is available in the UVFS MAL-1965 material, which is known for its excellent optical properties. The filter's catalog number is 87-812, and it can be found on the Edmund Optics website, where it is currently in stock.

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