49-343-INK 18 mm Dia. N-SSK8/N-SF10 Achromatic Doublet; EFL=50mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 18 mm
- EFL
- 50 mm
- R1
- 27.12 mm
- R2
- -25.66 mm
Material 1
- Name
- N-SSK8
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6203679865890697
- λ
- 550 nm
- B1
- 1.44857867
- C1
- 0.00869310149 μm2
- B2
- 0.117965926
- C2
- 0.0421566593 μm2
- B3
- 1.06937528
- C3
- 111.300666 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
49-343-INK 18 mm Dia. N-SSK8/N-SF10 Achromatic Doublet; EFL=50mm VIS-NIR 400-1000nm
The 49-343-INK is an 18 mm diameter achromatic doublet lens, designed for use in the visible to near-infrared spectrum (400-1000nm). This lens is sourced from Edmund Optics, a leading provider of optical components. The lens is part of their multiplet series, featuring a complex design to optimize performance.
The lens is constructed from two types of Schott glass, N-SSK8 and N-SF10, which are renowned for their high-quality optical properties. The front and back surfaces of the lens are coated with the EDM VIS-NIR 0SP2002000 coating, which is specifically designed for use in the visible to near-infrared spectrum. This coating enhances the lens's transmission and reduces reflection, improving its overall performance.
The lens has an effective focal length (EFL) of 50mm, making it suitable for a wide range of applications. The geometry of the lens includes a thickness of 5.69mm at the edge, a center thickness of 5mm, and a center thickness 'a' of 2.3mm. The lens's inner and outer radii are 0, indicating a circular shape. The lens's first and second radii of curvature are 27.12mm and -25.66mm, respectively, while the third radius of curvature is -538.7mm.
