420FIB25 25 mm Dia. Standard Interference Bandpass Filter 420nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 425 nm
- Cut On Frequency
- 415 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.468093689605173
- λ
- 420 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
420FIB25 25 mm Dia. Standard Interference Bandpass Filter 420nm
The 420FIB25 is a 25 mm diameter Standard Interference Bandpass Filter, specifically designed to transmit light in the 420nm range. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.
The filter is made of UVFS Mal- 1965 material, a unique type of optical substrate that offers excellent performance in the ultraviolet and visible light spectrums. It features a circular base shape, a geometry that is commonly used in optical systems due to its ease of alignment and integration.
The 420FIB25 has a thickness of 6.1mm, providing sufficient structural integrity for most applications. The front and back surfaces of the filter are coated with KNI 420DIB, a proprietary coating developed by Knight Optical to enhance the filter's performance and durability.
The filter's physical data includes a cut-on wavelength of 415nm and a cut-off wavelength of 425nm, ensuring a tight bandpass around the desired 420nm wavelength. The central wavelength (CWL) is also 420nm, indicating that this is the wavelength at which the filter's transmission is maximum.
The 420FIB25 is shaped as a thin lens, a design that minimizes optical aberrations and ensures high-quality imaging. This filter is currently in stock and available for immediate purchase through the Knight Optical website.