45-269 30 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=300mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 30 mm
- EFL
- 300 mm
- R1
- 184.4 mm
- R2
- -133.95 mm
Material 1
- 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
Material 2
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6771143911586193
- λ
- 550 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
45-269 30 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=300mm MgF2 400-700nm
The 45-269 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens is specifically designed for use in the 400-700nm spectral range, making it suitable for a wide range of optical applications.
The lens features a 30mm diameter and a focal length of 300mm, as indicated by its Effective Focal Length (EFL). The lens is constructed from two types of glass, N-BK7 and N-SF5, both from Schott, ensuring high-quality optical performance. The lens is coated with EDM MgF2 standard curve coatings on both the front and back surfaces, providing excellent light transmission and protection against environmental factors.
The lens geometry is carefully designed with a center thickness of 4.5mm and edge thickness of 6.12mm. The first and second radii of curvature are 184.4mm and -133.95mm respectively, while the third radius of curvature is -394.96mm. The lens is designed in a multiplet shape, which is ideal for a variety of optical systems.
According to the vendor's website, the lens is currently in stock, indicating its availability for immediate use. The catalog number for this lens is 45-269, and it can be found on the Edmund Optics website for further details and purchasing.
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