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67-809 25 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=3.5 mm 254nm

67-809 25 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=3.5 mm 254nm

Type
Filter
Subtype
Bandpass Filter
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25 mm
Cut Off Frequency
259 nm
Cut On Frequency
249 nm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.5053336321686834
λ
254 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

67-809 25 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=3.5 mm 254nm

The 67-809 is a 25 mm diameter mounted bandpass interference filter, designed and manufactured by Edmund Optics. This filter is specifically engineered for use at a center wavelength of 254 nm, with a full width at half maximum (FWHM) of 40 nm. The filter is mounted, providing a convenient and secure method of integration into optical systems.

The filter's geometry includes a diameter of 25 mm and a thickness of 3.5 mm, making it suitable for a wide range of applications. The cut-on wavelength is 249 nm, and the cut-off wavelength is 259 nm, providing a narrow band of transmission. The coating on both the front and back of the filter is EDM 67-742, which is a traditional coating designed to enhance the filter's performance.

The filter's shape is that of a thin lens, which can be beneficial in certain optical system designs. The catalog number for this filter is 67-809, and it is currently in stock, according to the vendor's website. The filter is available for purchase directly from the vendor, with a link provided in the item data for convenience.

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