AND-20S-70 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-70 20 x 20 mm Optical Glass Unmounted Visible Absorptive Neutral Density Filter 400-700nm
The AND-20S-70 is a 20 x 20 mm Neutral Density Filter, part of OptoSigma's extensive range of optical elements. This filter is designed for use in the visible light spectrum, specifically absorbing light within the 400-700nm range.
The filter is unmounted, providing flexibility for integration into various optical systems. It features a thin lens shape, with dimensions of 20mm in both height and width, and a thickness of 2mm, contributing to its compact design.
The filter's coating is a key feature, with both the front and back surfaces treated with OptoSigma's AND-70 coating. This coating enhances the filter's performance, ensuring consistent light absorption across the specified wavelength range.
The catalog number for this item is AND-20S-70, and it can be found on OptoSigma's official 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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