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LA1259-B N-BK7 Plano-Convex Lens; Dia:1 in; f=2500.0 mm ARC 650-1050nm

LA1259-B N-BK7 Plano-Convex Lens; Dia:1 in; f=2500.0 mm ARC 650-1050nm

Type
Lens
Subtype
Spherical Lens (Plano-Convex)
Brand
Thorlabs
Product webpage
Thorlabs products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25.4 mm
EFL
2500 mm
BFL
2498.6 mm
R1
1292 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5167984379050088
λ
587.6 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

LA1259-B N-BK7 Plano-Convex Lens; Dia:1 in; f=2500.0 mm ARC 650-1050nm

The LA1259-B is a plano-convex lens with a diameter of 1 inch, designed for use in the 650-1050nm wavelength range. This lens is sourced from Thorlabs, a reputable vendor known for its high-quality optical components.

The lens is made from N-BK7, a popular glass type in the optical industry due to its excellent optical properties. It has a spherical shape, with a front surface radius of 1292mm and a back focal length of 2498.6mm. The lens's effective focal length (EFL) is 2500mm, making it suitable for applications that require a long focal length.

The LA1259-B has a thickness of 2mm at the edge and 2.1mm at the center, providing a robust structure while maintaining a low profile. The lens features broadband anti-reflection coating (ARC) on both surfaces, specifically designed for the 650-1050nm wavelength range. This coating reduces surface reflections, enhancing the lens's transmission efficiency and overall performance.

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