13-010 25 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=125mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 125 mm
- R1
- 76.28 mm
- R2
- -54.55 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
13-010 25 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=125mm MgF2 400-700nm
This is a 25 mm diameter achromatic doublet lens, catalog number 13-010, sourced from Edmund Optics. The lens is designed for use in the 400-700nm spectral range, making it suitable for a wide range of optical applications. The lens is mounted and coated with MgF2, which is known for its standard curve characteristics.
The lens features a focal length of 125mm, indicated by the EFL (Effective Focal Length) value. The geometry of the lens includes a thickness of 6.89mm at the edge, a center thickness of 6mm, and a center thickness 'a' of 2.4mm. The lens's inner and outer radii are 0, and it has a base shape of a circle.
The lens is composed of two types of glass, N-BK7 and N-SF5, both from Schott. The use of these materials in a doublet configuration helps to correct chromatic aberration, a common issue in optical systems. The lens is designed as a multiplet, which means it is composed of multiple elements to achieve superior optical performance.
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