49-924 6.25 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=7.5mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6.25 mm
- EFL
- 7.5 mm
- R1
- 5.6 mm
- R2
- -3.71 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-SF57
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.854148364121864
- λ
- 550 nm
- B1
- 1.87543831
- C1
- 0.0141749518 μm2
- B2
- 0.37375749
- C2
- 0.0640509927 μm2
- B3
- 2.30001797
- C3
- 177.389795 μm2
49-924 6.25 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=7.5mm MgF2 400-700nm
The 49-924 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens is characterized by its 6.25 mm diameter and a focal length of 7.5 mm, making it suitable for a wide range of optical applications.
The lens is composed of two elements: N-BAF10 and N-SF57, both from Schott's extensive material library. This combination is strategically designed to minimize chromatic aberration, a common issue in optical systems. The lens's geometry is meticulously crafted, with a central thickness of 5 mm, an edge thickness of 4.61 mm, and radii of curvature of 5.6 mm and -3.71 mm for the first and second elements, respectively.
The lens's coatings are another notable feature. Both the front and back surfaces are coated with Edmund Optics' standard MgF2 coating, designed for the spectral range of 400-700 nm. This coating enhances the lens's performance by reducing reflection and improving transmission, thereby increasing the overall efficiency of the optical system.
