FND-25C02-0.1 25 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
- 25 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-25C02-0.1 25 mm Dia. Unmounted N-BK7 Visible Reflective Neutral Density Filter; t=2mm 400-700nm
OptoSigma's FND-25C02-0.1 is a 25 mm diameter, unmounted Neutral Density Filter, designed for use in the visible light spectrum, specifically between 400-700nm. This filter is made from N-BK7, a high-quality borosilicate glass manufactured by Schott, ensuring durability and reliability.
The filter features a reflective Neutral Density coating, denoted as 'opt fnd-0-1' on both the front and back surfaces. This coating is designed to reduce the intensity of light passing through the filter without altering its color balance. The coating is thin, contributing to the overall thickness of the filter being just 2mm.
The filter's geometry is that of a thin lens, making it suitable for use in various optical systems. The 25mm diameter provides a generous aperture, allowing for a wide range of applications. The filter is unmounted, providing users with the flexibility to integrate it into their existing optical systems or mount it in a custom housing.
For more information, including pricing and availability, please refer to the provided weblink.
