FNM1525 25 mm Dia. Metallic Neutral Density Filter 546nm
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- Knight Optical
Properties
- Shape
- Circular
- Diameter
- 25 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5187257728940171
- λ
- 546 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
FNM1525 25 mm Dia. Metallic Neutral Density Filter 546nm
The FNM1525 is a 25 mm diameter Neutral Density Filter, sourced from Knight Optical, a leading vendor in the optical industry. This filter is designed with a base shape of a Circular Metallic Neutral Density Filter, offering versatility and ease of use in various optical applications.
The filter is made from N-BK7 Schott, a high-quality optical glass known for its excellent transmittance and low auto-fluorescence. The geometry of the filter includes a diameter of 25 mm and a thickness of 2 mm, providing a robust and compact design.
The FNM1525 filter features a coating on both the front and back surfaces, specifically the KNI FNM15 coating. This coating enhances the filter's performance by reducing unwanted reflections and increasing transmission, thereby improving the overall quality of the optical system.
The filter's shape is classified as a Thin Lens, which is beneficial in applications where minimizing optical path length is crucial. The filter is currently in stock and available for immediate purchase through the vendor's website.