FND-30C02-40 30 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 30 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5185223876207927
- λ
- 550 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
FND-30C02-40 30 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm
This is the FND-30C02-40, a 30 mm diameter, unmounted Neutral Density Filter from OptoSigma. The filter is made of N-BK7 Schott, a high-quality borosilicate glass known for its excellent optical properties. The N-BK7 Schott material ensures high transmission and low absorption across a wide spectrum, making it ideal for various applications in the visible light range, specifically from 400 to 700nm.
The filter features a thickness of 2mm, providing robustness and stability. It is coated on both the front and back with Opt FND-40, a reflective neutral density coating. This coating reduces the amount of light transmitted without altering its color, providing a uniform attenuation of the light across the entire spectrum.
The FND-30C02-40 is in stock and available for immediate purchase through the provided weblink. Its thin lens shape allows for easy integration into various optical systems, making it a versatile choice for a wide range of applications.
