ACN254-075-A 25.4 mm Dia. N-BAK4/SF5 Unmounted Achromatic Doublet; EFL=-75.1mm 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- R1
- -39 mm
- R2
- 39.2 mm
Material 1
- Name
- N-BAK4
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5709961571059783
- λ
- 550 nm
- B1
- 1.28834642
- C1
- 0.00779980626 μm2
- B2
- 0.132817724
- C2
- 0.0315631177 μm2
- B3
- 0.945395373
- C3
- 105.965875 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
ACN254-075-A 25.4 mm Dia. N-BAK4/SF5 Unmounted Achromatic Doublet; EFL=-75.1mm 400-700nm
The ACN254-075-A is a high-quality achromatic doublet lens, sourced from the renowned optical component manufacturer, Thorlabs. This lens, with a diameter of 25.4 mm, is designed for use in the 400-700nm spectral range, making it suitable for a wide range of optical applications.
The lens is constructed from two types of materials, n-BAK4 and SF5, both from Schott, ensuring high optical quality and durability. The lens features a double convex front surface with a radius of curvature of -39mm and a double concave back surface with a radius of curvature of 39.2mm. The center thickness of the first and second components are 2mm and 4.3mm respectively, while the overall edge thickness of the lens is 8.6mm.
The lens is coated with Thorlabs' AC400-700-A coating on both the front and back surfaces, enhancing its transmission capabilities within the specified spectral range. The lens is unmounted, providing users with the flexibility to integrate it into their optical systems according to their specific requirements.
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