45-420 6.25 mm Dia. N-BAF10/N-SF10 Negative Achromatic Doublet; EFL=-12.5mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6.25 mm
- EFL
- -12.5 mm
- R1
- -24.66 mm
- R2
- 4.24 mm
Material 1
- Name
- N-BAF10
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6730569473646495
- λ
- 550 nm
- B1
- 1.5851495
- C1
- 0.00926681282 μm2
- B2
- 0.143559385
- C2
- 0.0424489805 μm2
- B3
- 1.08521269
- C3
- 105.613573 μm2
Material 2
- Name
- N-SF10
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7336618876174243
- λ
- 550 nm
- B1
- 1.62153902
- C1
- 0.0122241457 μm2
- B2
- 0.256287842
- C2
- 0.0595736775 μm2
- B3
- 1.64447552
- C3
- 147.468793 μm2
45-420 6.25 mm Dia. N-BAF10/N-SF10 Negative Achromatic Doublet; EFL=-12.5mm MgF2 400-700nm
The 45-420 is a high-quality negative achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 6.25 mm, is designed for use in the visible spectrum, specifically between 400-700 nm.
The lens features a negative focal length of -12.5 mm, making it suitable for a wide range of optical applications. The doublet is composed of two materials, N-BAF10 and N-SF10, both from Schott, which are known for their excellent optical properties.
The lens is coated with MgF2, a standard coating that provides superior anti-reflection properties. The coating is applied to both the front and back surfaces of the lens, ensuring optimal performance.
The geometry of the lens is carefully designed to provide the best possible optical performance. The lens has a thickness of 3.52 mm at the edge, with the center thickness being 1 mm. The lens also features three radii of curvature: r1=-24.66 mm, r2=4.24 mm, and r3=11.25 mm.
The lens is available for purchase directly from the Edmund Optics website, where it is listed as being in stock. The item data also includes a catalog number and a weblink for easy reference and ordering.
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