12-928 12.5 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=45mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 45 mm
- R1
- 26.82 mm
- R2
- -20.12 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
12-928 12.5 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=45mm MgF2 400-700nm
The 12-928 is a high-quality mounted achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens is designed with a 12.5 mm diameter and a focal length of 45mm, making it suitable for a wide range of optical applications.
The lens is constructed from two types of glass, N-BK7 and N-SF5, both from Schott. The use of these materials ensures high light transmission and excellent image quality. The lens is coated with EDM MgF2, a standard curve coating that further enhances light transmission and reduces surface reflections.
The lens geometry is carefully designed with a central thickness of 3.5mm and edge thickness of 3.94mm. The radii of the lens surfaces are R1=26.82mm, R2=-20.12mm, and R3=-61.38mm, which contribute to the lens's excellent optical performance.
The lens is mounted, making it ready for immediate use in optical systems. The weblink provided leads to the product page on Edmund Optics' website, where users can find more information and purchase the lens. The link is currently valid and indicates that the lens is in stock, ensuring quick delivery for interested users.
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