1020DIB25 25 mm Dia. Standard Interference Bandpass Filter 1020nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 1027.5 nm
- Cut On Frequency
- 1012.5 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.450167267794879
- λ
- 1020 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
1020DIB25 25 mm Dia. Standard Interference Bandpass Filter 1020nm
The 1020DIB25 is a 25 mm diameter Standard Interference Bandpass Filter, specifically designed to transmit light in the 1020nm wavelength range while blocking other wavelengths. This filter, offered by Knight Optical, is a crucial component for various optical systems that require narrowband transmission.
The filter is made from UVFS Mal-1965, a material known for its excellent optical properties. It has a base shape of a circle, ensuring easy integration into various optical setups. The filter's thickness is 6.1mm, providing robustness and stability.
The 1020DIB25 features a cut-on wavelength of 1012.5nm and a cut-off wavelength of 1027.5nm, ensuring a tight bandpass around the central wavelength of 1020nm. This precise wavelength selection is achieved through the use of a front and back coating of KNI 1020DIB, a proprietary coating developed by Knight Optical.
The filter's geometry is that of a thin lens, which can be beneficial in applications where minimal optical path length deviation is required. This filter is currently in stock and available for immediate purchase through the Knight Optical website.