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650DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 650nm

650DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 650nm

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
655 nm
Cut On Frequency
645 nm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.4565349734645043
λ
650 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

650DIB12 12.5 mm Dia. Standard Interference Bandpass Filter 650nm

The 650DIB12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to center at 650nm. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical elements.

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 645nm, and the cut-off wavelength is 655nm, making it highly effective in isolating the 650nm light. The Central Wavelength (CWL) of this filter is also 650nm, ensuring optimal performance for applications requiring this specific wavelength.

The filter is made from UVFS Mal-1965 material, a common choice for optical filters due to its excellent optical properties. It has a Thin Lens shape, which is beneficial for applications where space is a constraint. The filter's thickness is 6.1mm, providing sufficient structural integrity while minimizing unnecessary bulk.

The front and back of the filter are coated with KNI 650DIB, a proprietary coating from Knight Optical that enhances the filter's performance and durability. This coating ensures high transmission rates and excellent environmental stability, making the filter suitable for various applications.

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