1800DIB25 25 mm Dia. Standard Interference Bandpass Filter 1800nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
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.