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87-824 25 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 1050nm

87-824 25 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
25 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

87-824 25 mm Dia. Hard Coated OD 4.0 25nm Bandpass Filter; t=3.5 mm 1050nm

The 87-824 is a Bandpass Filter with a diameter of 25 mm, manufactured by Edmund Optics. This filter is specifically designed for a central wavelength of 1050 nm, making it ideal for applications that require precise wavelength selection within this range.

The filter is constructed with a hard coating on both the front and back surfaces, denoted as 'edm 87-812'. This coating enhances the filter's durability and resistance to environmental factors, ensuring long-lasting performance. The filter's thickness is 3.5 mm, providing sufficient structural integrity for most applications.

The 87-824 features a cut-on wavelength of 1037.5 nm and a cut-off wavelength of 1062.5 nm. These values are crucial in determining the filter's passband, which is the range of wavelengths that the filter allows to pass. The cut-on and cut-off wavelengths, along with the central wavelength, are carefully controlled during the manufacturing process to ensure high-precision performance.

This filter is designed in a circular shape, commonly referred to as a 'Thin Lens' shape in optical terminology. This shape is versatile and can be easily integrated into various optical systems. The filter's diameter of 25 mm provides a large aperture, allowing for efficient light collection and transmission.

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