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685DIJ12 12.5 mm Dia. Standard Interference Bandpass Filter 685nm

685DIJ12 12.5 mm Dia. Standard Interference Bandpass Filter 685nm

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
690 nm
Cut On Frequency
680 nm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.455642801682529
λ
685 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

685DIJ12 12.5 mm Dia. Standard Interference Bandpass Filter 685nm

The 685DIJ12 is a 12.5 mm diameter Standard Interference Bandpass Filter, specifically designed to center at 685nm. This filter is sourced from Knight Optical, a renowned 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 680nm, and the cut-off wavelength is 690nm, making it highly effective in isolating the 685nm wavelength.

The 685DIJ12 is made from UVFS Mal- 1965, a material specifically chosen for its optical properties. It has a thickness of 6.1mm, which is sufficient to maintain its structural integrity and optical performance.

The coating on both the front and back surfaces of the filter is KNI 685DIJ. This coating is crucial as it enhances the filter's performance by ensuring the specified wavelength transmission range.

The filter's shape is a Thin Lens, which is a common shape for optical elements due to its minimal thickness and weight. This makes it easy to integrate into various optical systems.

According to the vendor, this item is in stock and the web link provided is valid. Users can directly access the product page for more information or to make a purchase.

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