AND-20S-50 20 x 20 mm Optical Glass Unmounted Visible Absorptive Neutral Density Filter 400-700nm
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- OptoSigma
Properties
- Shape
- Rectangular
- A
- 20 mm
- B
- 20 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4599108862211283
- λ
- 550 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
AND-20S-50 20 x 20 mm Optical Glass Unmounted Visible Absorptive Neutral Density Filter 400-700nm
The AND-20S-50 is a 20 x 20 mm Neutral Density Filter, part of the Absorptive Neutral Density Filter range from OptoSigma. This unmounted filter is designed for use in the visible spectrum, specifically between 400-700nm.
The filter is characterized by its thin lens shape, making it suitable for a variety of optical applications. The geometry of the filter includes dimensions of 20mm by 20mm, with a thickness of 2mm, providing a substantial yet manageable size for most setups.
The filter's coating is a notable feature, with both the front and back being treated with the Opt AND-50 coating. This coating is designed to enhance the filter's performance and durability, ensuring optimal use in its intended applications.
The catalog number for this item is AND-20S-50, and it can be found on the OptoSigma website, where it is currently in stock. The link to the product page is provided in the item data for easy access and further information.
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