450DIB25 25 mm Dia. Standard Interference Bandpass Filter 450nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 455 nm
- Cut On Frequency
- 445 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4655656650591817
- λ
- 450 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
450DIB25 25 mm Dia. Standard Interference Bandpass Filter 450nm
The 450DIB25 is a 25 mm diameter Standard Interference Bandpass Filter, specifically designed to center at 450nm. 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 out unwanted light from other spectral regions. This particular model has a cut-on wavelength of 445nm and a cut-off wavelength of 455nm, making it ideal for applications that require narrow-band light in the blue region of the spectrum.
The 450DIB25 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 where space is a constraint. The filter has a thickness of 6.1mm, providing sufficient structural integrity while minimizing unnecessary weight.
Both the front and back surfaces of the filter are coated with KNI 450DIB, a proprietary coating developed by Knight Optical. This coating enhances the filter's performance by reducing surface reflections and improving transmission efficiency.