920DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 920nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 925 nm
- Cut On Frequency
- 915 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4514726602540384
- λ
- 920 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
920DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 920nm
The 920DIB12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to operate at a central wavelength of 920nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical elements.
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 915nm, and the cut-off wavelength is 925nm, ensuring a tight bandpass around the central wavelength.
The 920DIB12 is made from UVFS Mal- 1965, a material specifically chosen for its optical properties. The filter has a thickness of 6.1mm, and its shape is that of a Thin Lens, which is often used in optical systems to reduce spherical aberration.
The coating on both the front and back surfaces of the filter is KNI 920DIB. This coating is designed to enhance the filter's performance, ensuring high transmission within the passband and excellent blocking outside of it.
The filter is currently in stock and available for immediate purchase. For more information, please refer to the vendor's website using the provided weblink.