520FDS50 50 x 50 mm Shortpass Dichroic Filter 520nm
- Type
- Filter
- Subtype
- Dichroic Filter
- Brand
- Knight Optical
Properties
- Shape
- Rectangular
- Cut Off Frequency
- 520 nm
- Cut On Frequency
- 746 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
520FDS50 50 x 50 mm Shortpass Dichroic Filter 520nm
The 520FDS50 is a high-quality dichroic filter, measuring 50 x 50 mm, designed for shortpass applications with a cutoff wavelength of 520nm. This filter is sourced from Knight Optical, a renowned vendor known for their extensive catalog of optical elements.
The filter is made from N-BK7 Schott, a popular optical glass due to its excellent homogeneity, low auto-fluorescence, and high damage threshold. The filter's geometry includes a thickness of 1.1mm, making it suitable for a wide range of optical applications.
The 520FDS50 features a dichroic coating on both the front and back surfaces, specifically the KNI 520FDS-0 coating. This coating is designed to reflect wavelengths shorter than 520nm while transmitting longer wavelengths. The cut-on wavelength for this filter is 746nm.
The filter is shaped as a thin lens, which can be beneficial in certain optical systems where minimal thickness is required. The filter's physical data, including its cut-on and cut-off wavelengths, are precisely controlled during manufacturing to ensure high-performance and consistency.
This filter is currently in stock and available for immediate purchase through the vendor's website. The link to the product page is provided for your convenience.
