820DIB25 25 mm Dia. Standard Interference Bandpass Filter 820nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 825 nm
- Cut On Frequency
- 815 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4529792355927742
- λ
- 820 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
820DIB25 25 mm Dia. Standard Interference Bandpass Filter 820nm
The 820DIB25 is a 25 mm diameter Standard Interference Bandpass Filter, specifically designed to operate at a central wavelength of 820nm. This filter is sourced from Knight Optical, a renowned vendor known for their high-quality optical elements.
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 820DIB25 is cut on at 815nm and cut off at 825nm, providing a narrow bandwidth for optimal performance. The central wavelength (CWL) of this filter is 820nm, indicating that it is designed to transmit light most efficiently at this wavelength.
The filter is made from UVFS Mal-1965, a material known for its optical properties. It has a circular base shape, a common design for filters due to its ease of integration into various optical systems. The filter's geometry includes a thickness of 6.1mm, providing structural stability and resistance to external forces.
The 820DIB25 features a Thin Lens shape, which is beneficial for applications requiring minimal optical path deviation. The front and back of the filter are coated with KNI 820DIB, a coating specifically designed to enhance the filter's performance and durability.
According to the vendor's information, this item is currently in stock and available for immediate purchase. The filter's web link is provided for easy access to additional information or to place an order.
