542FDN25 25 mm Dia. Bandblocking Dichroic Filter 542nm
- Type
- Filter
- Subtype
- Dichroic Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 472 nm
- Cut On Frequency
- 612 nm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5189334783108939
- λ
- 542 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
542FDN25 25 mm Dia. Bandblocking Dichroic Filter 542nm
The 542FDN25 is a high-quality Dichroic Filter, specifically designed for bandblocking applications, with a central wavelength of 542nm. This filter is sourced from Knight Optical, a renowned vendor known for their extensive catalog of optical elements.
The filter is circular in shape, with a diameter of 25mm and a thickness of 1.1mm, making it suitable for a wide range of optical applications. It is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and high damage threshold.
The 542FDN25 features a cut-on wavelength of 612nm and a cut-off wavelength of 472nm, ensuring effective bandblocking within this range. The coating on both the front and back of the filter is KNI 542FDN-0, which is specifically designed for this type of filter.
The filter is shaped as a thin lens, which can be beneficial in certain optical systems. It is currently in stock and available for purchase on Knight Optical's website, as indicated by its weblink status.