11-988 25 mm Dia. First Surface UV Bandpass Filter; t=1.5 mm 239nm
- Type
- Filter
- Subtype
- Bandpass Filter
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- Cut Off Frequency
- 244 nm
- Cut On Frequency
- 234 nm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5139684093655286
- λ
- 239 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
11-988 25 mm Dia. First Surface UV Bandpass Filter; t=1.5 mm 239nm
The 11-988 is a 25 mm diameter First Surface UV Bandpass Filter, with a thickness of 1.5 mm, specifically designed for use at a central wavelength of 239nm. This filter, offered by Edmund Optics, is a Bandpass Filter, which allows light to pass through a specific range of wavelengths while blocking other wavelengths.
The filter's physical data includes a cut-on wavelength of 234nm and a cut-off wavelength of 244nm, ensuring a tight bandpass performance. The front and back of the filter are coated with "edm 11-988", a coating that enhances the filter's performance and durability.
The filter's geometry, with a diameter of 25mm, makes it suitable for a wide range of optical applications. The filter's thickness, 1.5mm, is also within the standard range for such components, providing a good balance between robustness and compactness.
The filter's catalog number is 11-988, and it is available for purchase directly from the vendor's website, with the weblink provided in the item data indicating that it is currently in stock. This filter, part of the UVFS MAL-1965 material ID, is a reliable and high-performance option for applications that require precise UV light filtering.