AC254-080-A 25.4 mm Dia. N-BK7/N-SF5 Unmounted 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 25.4 mm Dia. N-BK7/N-SF5 Unmounted Achromatic Doublet; EFL=80mm 400-700nm
The AC254-080-A is a 25.4 mm diameter achromatic doublet lens, unmounted and sourced from Thorlabs. This lens is designed for use in the 400-700nm wavelength range, making it suitable for a wide array of optical applications. The lens features a focal length of 80mm, indicated by the 'EFL=80mm' in its name.
The lens is composed of two elements, made from N-BK7 and N-SF5 materials, respectively. These materials, both from Schott, are known for their high-quality optical properties. The first element has a radius of curvature of 49.6mm, while the second element has radii of -35.5mm and -101.2mm, contributing to the lens's overall optical performance.
The lens has a thickness of 7.3mm at the edge and features varying thicknesses at its centers, specifically 7mm and 3mm. This design allows for precise control over the lens's optical properties. The lens's front and back surfaces are coated with Thorlabs' AC400-700-A coating, which is specifically designed for use in the 400-700nm wavelength range.
