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1800DIB25 25 mm Dia. Standard Interference Bandpass Filter 1800nm

1800DIB25 25 mm Dia. Standard Interference Bandpass Filter 1800nm

Type
Filter
Subtype
Bandpass Filter
Brand
Knight Optical
Product webpage
Knight Optical products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25 mm
Cut Off Frequency
1808 nm
Cut On Frequency
1792 nm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.4408735085247504
λ
1800 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

1800DIB25 25 mm Dia. Standard Interference Bandpass Filter 1800nm

The 1800DIB25 is a 25 mm diameter Standard Interference Bandpass Filter, specifically designed to operate at a central wavelength of 1800nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.

The filter is of the Bandpass type, which means it allows transmission of light within a specific range of wavelengths while blocking light outside this range. The cut-on wavelength is 1792nm, and the cut-off wavelength is 1808nm, providing a narrow, precise band of transmission. The center wavelength (CWL) is 1800nm, indicating the midpoint of this transmission band.

The filter is made from UVFS Mal- 1965, a material known for its optical properties in the infrared region. The filter has a thickness of 6.1mm, providing sufficient structural integrity for most applications.

The coating on both the front and back surfaces of the filter is KNI 1800DIB. This coating is specifically designed to enhance the filter's performance, ensuring optimal transmission within the specified wavelength range.

The filter's shape is that of a Thin Lens, which can be beneficial in certain optical systems where a lens-like element is required.

According to the vendor, this item is currently in stock and can be purchased directly from their website using the provided weblink. The link has been validated and found to be functional at the time of writing.

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