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ACN254-100-A 25.4 mm Dia. N-BAK4/SF5 Unmounted Achromatic Doublet; EFL=-100.1mm 400-700nm

ACN254-100-A 25.4 mm Dia. N-BAK4/SF5 Unmounted Achromatic Doublet; EFL=-100.1mm 400-700nm

Type
Lens
Subtype
Multiplets
Brand
Thorlabs
Product webpage
Thorlabs products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25.4 mm
R1
-52 mm
R2
49.9 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

ACN254-100-A 25.4 mm Dia. N-BAK4/SF5 Unmounted Achromatic Doublet; EFL=-100.1mm 400-700nm

The ACN254-100-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 performance. The lens features a double-convex front surface with a radius of curvature of -52mm and a double-concave rear surface with a radius of curvature of 49.9mm. The lens has a central thickness of 2mm and 4mm at its center, providing robustness and durability.

The lens is unmounted, offering flexibility in integration into various optical systems. It comes with anti-reflection coatings, THo AC400-700-A, on both the front and back surfaces, reducing unwanted reflections and increasing transmission.

The lens has an effective focal length of -100.1mm, making it a powerful tool for imaging and beam manipulation. The lens geometry, including the inner and outer radii, thickness at the edge, and the curvature radii, are all optimized for high optical performance.

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