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685FAP2500 25 mm Dia. Acrylic Colour Longpass Filter 685nm

685FAP2500 25 mm Dia. Acrylic Colour Longpass Filter 685nm

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

Properties

Shape
Circular
Diameter
25 mm
Cut Off Frequency
2200 nm
Cut On Frequency
685 nm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.458448271212196
λ
588 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

685FAP2500 25 mm Dia. Acrylic Colour Longpass Filter 685nm

The 685FAP2500 is a Longpass Filter with a 25 mm diameter, sourced from Knight Optical. This filter is designed to transmit light at wavelengths above 685nm while blocking light at wavelengths below this point. The filter's cut-on wavelength is 685nm, and it has a cut-off wavelength of 2200nm.

The filter is made from UVFS MAL-1965, a type of acrylic material, and has a thickness of 1mm. It features a Thin Lens shape and is coated with KNI 685FAP on both the front and back surfaces. The filter's geometry includes a diameter of 25mm, making it suitable for a variety of optical applications.

According to the vendor's information, this item is currently in stock and available for purchase. For more details, you can visit the following link: https://www.knightoptical.com/stock/default/acrylic-colour-filter-25mmdia-685nm-long-pass.html

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