FNDU-25C02-40 25 mm Dia. Unmounted UVFS Reflective Neutral Density Filter; t=2mm 200-400nm
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4877929746541196
- λ
- 300 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
OptoSigma FNDU-25C02-40 25 mm Dia. Unmounted UVFS Reflective Neutral Density Filter
OptoSigma's FNDU-25C02-40 is a 25 mm diameter, unmounted, reflective neutral density filter, designed for use in the ultraviolet range of 200-400nm. This filter is part of the UVFS series, identified by the material ID "uvfs mal- 1965".
The filter boasts a thickness of 2mm, providing a robust and durable construction. It features a thin lens shape, making it an ideal choice for applications that require a compact and lightweight optical component.
The filter's coating is another notable feature. Both the front and back surfaces are coated with "opt fndu-40", a coating that enhances the filter's performance and durability.
This filter is currently in stock and can be purchased directly from the OptoSigma website. The product information, including the catalog number and weblinks, are provided for your convenience.