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850DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 850nm

850DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 850nm

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

Properties

Shape
Circular
Diameter
12.5 mm
Cut Off Frequency
855 nm
Cut On Frequency
845 nm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.4524982859534705
λ
850 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

850DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 850nm

The 850DIB12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to operate at a central wavelength of 850nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.

The filter is a Bandpass type, which means it allows transmission of light within a specific range of wavelengths while blocking other wavelengths. In this case, the cut-on wavelength is 845nm, and the cut-off wavelength is 855nm, ensuring a tight bandpass around the central wavelength of 850nm.

The 850DIB12 is made from UVFS Mal- 1965, a material specifically chosen for its optical properties. The filter has a thickness of 6.1mm, and its circular shape allows for easy integration into various optical systems.

The front and back of the filter are coated with KNI 850DIB, a proprietary coating developed by Knight Optical. This coating enhances the filter's performance and durability, ensuring reliable operation in demanding environments.

The filter's geometry is that of a Thin Lens, which can be beneficial in certain optical system configurations. This filter is currently in stock and available for immediate purchase through the vendor's website.

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