49-948-INK 6.25 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=7.5mm VIS-NIR 400-1000nm
- 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
49-948-INK 6.25 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=7.5mm VIS-NIR 400-1000nm
The 49-948-INK is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 6.25 mm, is designed for use in the visible (VIS) and near-infrared (NIR) spectrum, spanning 400-1000nm. The lens is specifically designed for use in a variety of applications, including but not limited to, imaging, metrology, and beam shaping.
The lens features a focal length of 7.5 mm, denoted as EFL (Effective Focal Length), which is a critical parameter in lens selection. The EFL determines the lens's magnification power and is a key factor in determining the lens's suitability for a specific application.
The lens is constructed from two types of glass, N-BAF10 and N-SF57, both from Schott, a leading manufacturer of high-quality optical glass. The use of these materials ensures excellent optical performance, minimizing chromatic aberration, a common issue in lens systems.
The lens is coated with Edmund Optics' proprietary VIS-NIR coating, denoted as edm visnir0sp2002000. This coating is designed to enhance the lens's performance in the VIS-NIR spectrum, reducing reflection and increasing transmission.
The lens's geometry is another critical aspect. It has a thickness of 4.61 mm at the edge, with an inner radius of 0 and an outer radius of 0. The lens's center thickness is 5 mm, with an additional thickness 'a' of 1 mm. The lens's base shape is circular, making it suitable for a wide range of applications.
