AC050-015-A 5 mm Dia. N-BK7/SF2 Unmounted Achromatic Doublet; EFL=15mm 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 5 mm
- R1
- 12.5 mm
- R2
- -5.3 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
- SF2
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6517416788523134
- λ
- 550 nm
- B1
- 1.40301821
- C1
- 0.0105795466 μm2
- B2
- 0.231767504
- C2
- 0.0493226978 μm2
- B3
- 0.939056586
- C3
- 112.405955 μm2
AC050-015-A 5 mm Dia. N-BK7/SF2 Unmounted Achromatic Doublet; EFL=15mm 400-700nm
The AC050-015-A is a high-quality achromatic doublet lens, unmounted, with a 5 mm diameter, sourced from Thorlabs. This 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 doublet, meaning it is composed of two individual lenses made from different materials to reduce chromatic aberration.
The first lens material is N-BK7, a borosilicate glass commonly used in optical systems due to its excellent optical properties and low cost. The second lens material is SF2, a high-index flint glass often used in achromatic doublets to correct for chromatic aberration. Both lenses are coated with Thorlabs' AC400-700-A coating, which is designed for use in the 400-700nm spectral range.
The lens geometry is carefully designed to provide optimal performance. The lens has an effective focal length (EFL) of 15mm, which is the distance from the lens to the point at which light rays converge. The lens has a thickness of 4.3mm at the edge, with a central thickness of 2.7mm for the first lens and 2.1mm for the second lens. The lens has a base shape of a circle, with radii of curvature of 12.5mm, -5.3mm, and -12.1mm for the first, second, and third surfaces, respectively.
