480FDL12 12.5 mm Dia. Longpass Dichroic Filter 480nm
- Type
- Filter
- Subtype
- Dichroic Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- Cut On Frequency
- 480 nm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167817367777034
- λ
- 588 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
480FDL12 12.5 mm Dia. Longpass Dichroic Filter 480nm
The 480FDL12 is a Dichroic Filter, specifically a Longpass Filter with a 480nm cut-on wavelength, sourced from Knight Optical. This filter is designed with a circular geometry, featuring a 12.5mm diameter and a thickness of 1.1mm. The base material of this filter is N-BK7 Schott, a widely used optical glass due to its excellent optical properties and high transmittance in the visible spectrum.
The 480FDL12 filter is coated with a kni 480fdl-0 coating on both the front and back surfaces. This coating is designed to reflect or transmit light at specific wavelengths, enhancing the filter's performance. The physical data of this filter indicates a cut-on wavelength of 480nm, meaning it begins to transmit light at this wavelength and beyond. The cut-off wavelength is 0nm, indicating that it blocks all wavelengths below this point.
This filter is classified as a Thin Lens, suggesting it has a short focal length relative to its diameter. It is currently in stock and available for immediate purchase through the vendor's website. The catalog number for this item is 480FDL12.