540DIB25 25 mm Dia. Standard Interference Bandpass Filter 540nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 545 nm
- Cut On Frequency
- 535 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4603436028194272
- λ
- 540 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
540DIB25 25 mm Dia. Standard Interference Bandpass Filter 540nm
The 540DIB25 is a 25 mm diameter Standard Interference Bandpass Filter, specifically designed to center at a wavelength of 540nm. 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 535nm, and the cut-off wavelength is 545nm, making it highly effective in isolating the 540nm wavelength.
The 540DIB25 is made from UVFS MAL-1965, a material known for its excellent optical properties. It features a Thin Lens shape, which is beneficial for applications requiring minimal added weight or thickness. The filter has a diameter of 25mm and a thickness of 6.1mm, providing a good balance between compactness and durability.
The filter's coating is another notable feature. Both the front and back surfaces are coated with KNI 540DIB, a proprietary coating developed by Knight Optical. This coating enhances the filter's performance, ensuring high transmission and blocking efficiency within the specified wavelength range.