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1140DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 1140nm

1140DIB12 12.5 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
12.5 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

1140DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 1140nm

The 1140DIB12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to operate at a central wavelength of 1140nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.

The filter is a Bandpass type, which means it allows transmission of light within a specific range of wavelengths while blocking other 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 band of transmitted light.

The 1140DIB12 is made from UVFS Mal-1965, a material known for its excellent optical properties. 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 1140DIB, which is specifically designed to enhance the filter's performance and durability.

The filter's shape is that of a Thin Lens, which is often preferred in optical systems due to its minimal impact on the overall system's optical properties. This filter is currently in stock and available for immediate purchase through Knight Optical's website.

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