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1140FIB25 25 mm Dia. Standard Interference Bandpass Filter 1140nm

1140FIB25 25 mm Dia. Standard Interference Bandpass Filter 1140nm

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
1148.75 nm
Cut On Frequency
1131.25 nm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.4487375830905922
λ
1140 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

1140FIB25 25 mm Dia. Standard Interference Bandpass Filter 1140nm

The 1140FIB25 is a 25 mm diameter Standard Interference Bandpass Filter, specifically designed to operate at a central wavelength of 1140nm. This filter is sourced from Knight Optical, a renowned 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 out unwanted wavelengths. This particular model has a cut-on wavelength of 1131.25nm and a cut-off wavelength of 1148.75nm, ensuring a narrow and precise bandwidth for your optical system.

The 1140FIB25 is made from UVFS Mal-1965, a material known for its excellent optical properties. The filter has a thickness of 6.1mm, providing sufficient mechanical stability for most applications. The front and back of the filter are coated with KNI 1140DIB, a coating specifically designed to enhance the filter's performance at the specified wavelength.

The filter's geometry is that of a Thin Lens, which can be beneficial in certain optical systems where a lens-like element is required. The filter's diameter is 25mm, making it suitable for use in many standard optical setups.

According to the vendor, this item is currently in stock and the web link provided leads to its product page on Knight Optical's website. This information is subject to change, so it's always a good idea to check the vendor's website for the most up-to-date status.

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