85-901 25 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 1450nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 1475 nm
- Cut On Frequency
- 1425 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4452024286041654
- λ
- 1450 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
85-901 25 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 1450nm
The 85-901 is a Bandpass Filter, specifically designed by Edmund Optics with a diameter of 25 mm and a thickness of 3.5 mm. This filter is part of the UVFS MAL-1965 material ID family, which is renowned for its high-quality optical properties.
The Bandpass Filter is a type of optical filter that allows light to pass within a certain range of wavelengths, while blocking other wavelengths. In this case, the 85-901 filter is designed to allow light with a central wavelength (CWL) of 1450nm to pass, with a cut-on wavelength of 1425nm and a cut-off wavelength of 1475nm. This makes it ideal for applications that require the precise filtering of light in the 1450nm range.
The filter is hard coated on both the front and back, with the front coating being EDM 85-889 and the back coating also being EDM 85-889. This coating not only enhances the filter's durability but also its performance, ensuring that the filter maintains its specified properties even under harsh conditions.
The filter's thin lens shape further adds to its versatility, making it suitable for a wide range of optical systems. The filter is currently in stock and available for purchase through the Edmund Optics website, as indicated by its valid weblink status.