67-739 12.5 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=3.5 mm 248nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- Cut Off Frequency
- 253 nm
- Cut On Frequency
- 243 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5085507095161235
- λ
- 248 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
67-739 12.5 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=3.5 mm 248nm
The 67-739 is a mounted traditional coated bandpass interference filter, designed and manufactured by Edmund Optics. This filter is characterized by its circular shape, with a diameter of 12.5 mm, and a thickness of 3.5 mm, making it suitable for a wide range of optical applications.
The filter is constructed using a unique material identified as UVFS MAL-1965, which is specifically designed for use in the ultraviolet spectrum. The filter's central wavelength (CWL) is 248nm, with a full width at half maximum (FWHM) of 10nm. This precise wavelength control ensures the filter's effectiveness in specific applications.
The 67-739 filter features a cut-on wavelength of 243nm and a cut-off wavelength of 253nm. This wavelength range is achieved through a meticulous coating process, resulting in a front coating of EDM 67-739 and a back coating of the same. This coating process enhances the filter's performance and durability.
The filter's geometry is that of a thin lens, which contributes to its versatility in various optical systems. The filter is currently in stock and available for purchase through the Edmund Optics website, as indicated by its valid weblink status.