1140DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 1140nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
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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