535FDN25 25 mm Dia. Bandblocking Dichroic Filter 535nm
- Type
- Filter
- Subtype
- Dichroic Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 435 nm
- Cut On Frequency
- 635 nm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5193077859533948
- λ
- 535 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
535FDN25 25 mm Dia. Bandblocking Dichroic Filter 535nm
The 535FDN25 is a Dichroic Filter, specifically designed for bandblocking applications, with a diameter of 25 mm. This filter, available from Knight Optical, is a versatile component in the realm of optical systems.
The filter's primary function is to block light in the 435-635 nm range while allowing light at the center wavelength (CWL) of 535 nm to pass through. This makes it an ideal choice for applications where specific wavelength selection is required.
The 535FDN25 is made from N-BK7 Schott, a widely used optical glass due to its excellent optical properties and chemical resistance. The filter has a thickness of 1.1 mm, providing sufficient structural integrity while maintaining minimal optical path difference.
The coating on both the front and back surfaces of the filter is KNI 535FDN-0. This coating enhances the filter's performance, ensuring efficient blockage of unwanted wavelengths and transmission of the desired 535 nm light.
The filter's geometry is that of a thin lens, which can be beneficial in certain optical system designs. It is currently in stock and available for immediate purchase through the provided weblink.