45-178 40 mm Dia. N-BAK4/N-SF10 Achromatic Doublet; EFL=300mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- 300 mm
- R1
- 194.96 mm
- R2
- -148.27 mm
Material 1
- Name
- N-BAK4
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5709961571059783
- λ
- 550 nm
- B1
- 1.28834642
- C1
- 0.00779980626 μm2
- B2
- 0.132817724
- C2
- 0.0315631177 μm2
- B3
- 0.945395373
- C3
- 105.965875 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
45-178 40 mm Dia. N-BAK4/N-SF10 Achromatic Doublet; EFL=300mm MgF2 400-700nm
The 45-178 is a high-quality achromatic doublet lens, boasting a 40 mm diameter and a focal length of 300 mm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for purchase on their official website. The product link provided is currently valid and indicates that the lens is in stock.
The lens is constructed from two types of glass, N-BAK4 and N-SF10, both from Schott. This combination allows for superior optical performance, particularly in terms of chromatic aberration correction. The lens is coated with MgF2, a standard coating that provides excellent transmission in the visible spectrum (400-700 nm).
The lens geometry is carefully designed, with a central thickness of 9 mm and edge thickness of 11.66 mm. The radii of the lens surfaces are R1 = 194.96 mm, R2 = -148.27 mm, and R3 = -483.71 mm. The lens is circular in shape and has a multiplet design, which contributes to its high optical performance.
