1140FIB25 25 mm Dia. Standard Interference Bandpass Filter 1140nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
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.