67-904 50 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=5.9 mm 680nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- Cut Off Frequency
- 685 nm
- Cut On Frequency
- 675 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4557635703408012
- λ
- 680 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
67-904 50 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=5.9 mm 680nm
The 67-904 is a mounted traditional coated bandpass interference filter, designed and manufactured by Edmund Optics. This filter is characterized by its 50 mm diameter and 5.9 mm thickness, making it suitable for a wide range of applications. The filter's primary function is to allow light in a specific wavelength range to pass through while blocking other wavelengths.
The 67-904 filter is designed to operate at a central wavelength (CWL) of 680 nm, with a full width at half maximum (FWHM) of 10 nm. This specificity makes it ideal for applications that require precise wavelength selection. The filter's cut-on wavelength is 675 nm, and the cut-off wavelength is 685 nm, further enhancing its wavelength selectivity.
The filter's front and back surfaces are coated with EDM 67-770, a proprietary coating developed by Edmund Optics. This coating enhances the filter's performance and durability, ensuring reliable operation in various conditions.
The filter's shape is that of a thin lens, which contributes to its compact design and ease of integration into optical systems. The catalog number for this filter is 67-904, and it is currently in stock on the Edmund Optics website, as indicated by its weblink status.