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520FDS50 50 x 50 mm Shortpass Dichroic Filter 520nm

520FDS50 50 x 50 mm Shortpass Dichroic Filter 520nm

Type
Filter
Subtype
Dichroic Filter
Brand
Knight Optical
Product webpage
Knight Optical products in the 3DOptix catalog

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.

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