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AC254-035-C 25.4 mm Dia. N-BAF10/N-SF6 Unmounted Achromatic Doublet; EFL=35.1mm 1050-1700nm

AC254-035-C 25.4 mm Dia. N-BAF10/N-SF6 Unmounted Achromatic Doublet; EFL=35.1mm 1050-1700nm

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

Properties

Shape
Circular
Diameter
25.4 mm
R1
23.2 mm
R2
-17.9 mm

Material 1

Name
N-BAF10
Dispersion Equation
Sellmeier
n (λ)
1.6730569473646495
λ
550 nm
B1
1.5851495
C1
0.00926681282 μm2
B2
0.143559385
C2
0.0424489805 μm2
B3
1.08521269
C3
105.613573 μm2

Material 2

Name
N-SF6
Dispersion Equation
Sellmeier
n (λ)
1.811866267147773
λ
550 nm
B1
1.77931763
C1
0.0133714182 μm2
B2
0.338149866
C2
0.0617533621 μm2
B3
2.08734474
C3
174.01759 μm2

AC254-035-C 25.4 mm Dia. N-BAF10/N-SF6 Unmounted Achromatic Doublet; EFL=35.1mm 1050-1700nm

The AC254-035-C is a high-quality achromatic doublet lens, unmounted and with a diameter of 25.4 mm, sourced from the renowned optical components manufacturer, Thorlabs. This lens is designed for use within the wide spectral range of 1050-1700 nm, making it suitable for a variety of applications in infrared (IR) imaging and sensing systems.

The lens features a unique geometry, with an edge thickness of 8.8 mm and a center thickness of 11.5 mm at the first surface and 1.8 mm at the second surface. The lens curvature is defined by three radii: r1 = 23.2 mm, r2 = -17.9 mm, and r3 = -105.2 mm. The lens is made from two different materials, N-BAF10 and N-SF6, both from Schott, which contribute to its superior optical performance.

The AC254-035-C comes with anti-reflection (AR) coatings on both surfaces, specifically the Thorlabs' AC1050-1700-C coating, which is optimized for the 1050-1700 nm spectral range. This coating ensures high transmission and minimal reflection, further enhancing the lens's performance in IR applications.

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