AND-20S-40 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-40 20 x 20 mm Optical Glass Unmounted Visible Absorptive Neutral Density Filter 400-700nm
OptoSigma's AND-20S-40 is a high-quality Neutral Density Filter, designed to minimize the intensity of light passing through the optical pathway without altering its color composition. This filter is specifically intended for use in the visible spectrum, with a wavelength of 550nm, making it suitable for a wide range of optical applications.
The filter is rectangular in shape, with dimensions of 20 x 20 mm, and has a thickness of 2mm. This compact size and thin profile make it a versatile component for various optical systems. The filter is unmounted, providing users with the flexibility to integrate it into their existing setups or custom mounts.
The filter's coating is another notable feature. Both the front and back surfaces are coated with Opt AND-40, a specialized absorptive coating that enhances the filter's performance and durability. This coating helps to ensure consistent attenuation of light across the visible spectrum.
The catalog number for this filter is AND-20S-40, and it can be found on the OptoSigma website, where it is currently in stock. This information, along with the direct weblink provided, allows users to easily access and purchase this product.
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