670DIB25 25 mm Dia. Standard Interference Bandpass Filter 670nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 675 nm
- Cut On Frequency
- 665 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.45601149607456
- λ
- 670 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
670DIB25 25 mm Dia. Standard Interference Bandpass Filter 670nm
The 670DIB25 is a 25 mm diameter Standard Interference Bandpass Filter, specifically designed to center at a wavelength of 670nm. 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. In this case, the cut-on wavelength is 665nm, and the cut-off wavelength is 675nm, making it highly effective in isolating the 670nm wavelength.
The 670DIB25 is made from UVFS Mal-1965, a material known for its optical properties and durability. 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 diameter of 25mm and a thickness of 6.1mm, providing a robust structure while maintaining a compact profile. The coating on both the front and back surfaces is KNI 670DIB, a proprietary coating developed by Knight Optical for enhanced performance and durability.
The shape of the filter is Thin Lens, which suggests it may have some light focusing capabilities, although this is not its primary function. The physical data indicates a Center Wavelength (CWL) of 670nm, aligning with the filter's intended use.
The filter is currently in stock and available for immediate purchase through the vendor's website, as indicated by the 'Valid - in stock' status in the item data.
