AC254-080-A-ML 25.4 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=80mm 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- R1
- 49.6 mm
- R2
- -35.5 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
AC254-080-A-ML 25.4 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=80mm 400-700nm
This is the AC254-080-A-ML, a 25.4 mm diameter achromatic doublet lens 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, but Thorlabs offers a variety of mounting options for their lenses.
The lens is made from two types of glass, N-BK7 and N-SF5, both from Schott. These glasses are chosen for their optical properties, which help to correct chromatic aberration in the lens. The lens has a focal length of 80mm, as indicated by the EFL (Effective Focal Length) parameter.
The lens has a complex geometry, with three radii of curvature (r1, r2, r3) and varying thicknesses at the edge and center. The edge thickness is 7.3mm, while the center thicknesses are 7mm and 3mm. The lens's inner and outer radii are 0, indicating that the lens is a simple circular shape.
The lens is coated with Thorlabs' AC400-700-A coating on both the front and back surfaces. This coating is designed to improve the lens's transmission in the 400-700nm range.
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