FNG0225 25 mm Dia. Absorptive Glass Neutral Density Filter 546nm
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4600813135725972
- λ
- 546 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
FNG0225 25 mm Dia. Absorptive Glass Neutral Density Filter 546nm
The FNG0225 is a 25 mm diameter Neutral Density Filter, specifically designed for use in optical systems where light absorption is required. This filter is sourced from Knight Optical, a reputable vendor known for their high-quality optical components.
The filter is designed to absorb light evenly across the spectrum, making it ideal for applications where a consistent reduction in light intensity is needed. The wavelength for this filter is 546nm, which is typically used in applications such as beam attenuation, contrast enhancement, and protection of sensitive optical components from excessive light exposure.
The filter is made from UVFS MAL-1965 glass, a material known for its excellent optical properties and durability. It has a circular shape and a thin lens design, with a diameter of 25mm and a thickness of 1.4mm. This thin design not only reduces the weight of the filter but also minimizes the potential for optical aberrations.
The filter is coated on both the front and back with the KNI FNG02 coating. This coating enhances the filter's light absorption capabilities and also provides protection against environmental factors such as dust and moisture.
The FNG0225 is currently in stock and available for purchase on the Knight Optical website. For more information, please refer to the provided weblink.