AC254-150-A-ML 25.4 mm Dia. N-BK7/SF5 Mounted Achromatic Doublet; EFL=150mm 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- R1
- 91.6 mm
- R2
- -66.7 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
- SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6771178435097918
- λ
- 550 nm
- B1
- 1.46141885
- C1
- 0.0111826126 μm2
- B2
- 0.247713019
- C2
- 0.0508594669 μm2
- B3
- 0.949995832
- C3
- 112.041888 μm2
AC254-150-A-ML 25.4 mm Dia. N-BK7/SF5 Mounted Achromatic Doublet; EFL=150mm 400-700nm
This is the AC254-150-A-ML, a 25.4 mm diameter achromatic doublet lens, sourced from Thorlabs. 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 a mounted doublet, meaning it comes with a mount for easy integration into optical systems. The mount is not specified in the item data, so it's recommended to check the vendor's website for more details.
The lens is composed of two materials, N-BK7 and SF5, both from Schott. N-BK7 is a common optical glass, known for its excellent optical properties and wide transparency range. SF5, on the other hand, is a high-index, low-dispersion glass, often used in achromatic doublets to reduce chromatic aberration.
The lens has a focal length of 150mm, as indicated by the EFL (Effective Focal Length) parameter. The geometry of the lens is defined by its radii of curvature (r1, r2, r3) and thicknesses (thickness edge, thickness center 1, thickness center 2).
The lens surfaces are coated with Thorlabs' AC400-700-A coating, which is designed for use in the 400-700nm spectral range. This coating enhances the lens's transmission and reduces reflection, improving its performance in the specified spectral range.
