AND-20C-40 20 mm Dia. Optical Glass Unmounted Visible Absorptive Neutral Density Filter 400-700nm
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 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-20C-40 20 mm Dia. Optical Glass Unmounted Visible Absorptive Neutral Density Filter 400-700nm
The AND-20C-40 is a high-quality Neutral Density Filter, offered by the renowned optical components manufacturer, OptoSigma. This filter is designed for use in the visible light spectrum, specifically absorbing light within the 400-700nm range.
The filter is circular in shape, with a diameter of 20mm, making it suitable for a wide range of optical applications. It has a thickness of 2mm, ensuring durability and precision in its operation. The filter is unmounted, providing users with the flexibility to integrate it into their existing optical systems.
The filter's coating is another notable feature. Both the front and back surfaces of the filter are coated with OptoSigma's AND-40 coating. This coating enhances the filter's performance, providing superior light absorption and maintaining the neutrality of the transmitted light.
The filter's geometry is designed in the shape of a thin lens, optimizing its light transmission capabilities. The material ID for this filter is UVFS MAL-1965, further attesting to its high-quality construction and performance.
