45-211 25 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=30mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 30 mm
- R1
- 21.17 mm
- R2
- -16.08 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
45-211 25 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=30mm MgF2 400-700nm
The 45-211 is a high-quality achromatic doublet lens, offered by the renowned optical vendor, Edmund Optics. This lens, with a diameter of 25 mm, is designed for use in the visible spectrum, specifically between 400-700 nm. The lens is a multiplet, composed of two different types of glass - N-BAF10 and N-SF10, both from Schott.
The lens features an effective focal length (EFL) of 30 mm, making it suitable for a wide range of optical applications. The geometry of the lens is carefully crafted, with a central thickness of 11.04 mm and edge thickness of 9.3 mm. The lens's inner and outer radii are zero, indicating a symmetrical design. The first and second radii of curvature are 21.17 mm and -16.08 mm, respectively, while the third radius of curvature is -118.66 mm.
The lens is coated with MgF2, a standard coating that provides excellent anti-reflection properties in the visible spectrum. The coating is applied to both the front and back surfaces of the lens, ensuring optimal performance. The lens also features an 'edm mgf2 std curve' coating, which is a specific type of MgF2 coating offered by Edmund Optics.
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