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LA1304-C N-BK7 Plano-Convex Lens; Dia:0.5 in; f=40.0 mm ARC 1050-1700nm

LA1304-C N-BK7 Plano-Convex Lens; Dia:0.5 in; f=40.0 mm ARC 1050-1700nm

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

Properties

Shape
Circular
Diameter
12.7 mm
EFL
40 mm
BFL
38 mm
R1
20.6 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

LA1304-C N-BK7 Plano-Convex Lens; Dia:0.5 in; f=40.0 mm ARC 1050-1700nm

The LA1304-C is a Plano-Convex lens, a type of spherical lens characterized by having one flat surface and one curved surface. This lens, sourced from Thorlabs, features a circular base shape with a diameter of 0.5 inches (12.7 mm) and a thickness of 1.8 mm at the edge, increasing to 2.8 mm at the center. The effective focal length (EFL) of this lens is 40 mm, making it suitable for a variety of optical applications.

The lens is made of N-BK7, a type of glass commonly used in optical systems due to its excellent optical properties. The curvature of the lens is defined by a radius of 20.6 mm on the curved side, and the back focal length (BFL) is 38 mm. The lens does not have any inner or outer radius, indicating a uniform curvature.

The LA1304-C is coated with a broadband anti-reflection coating (ARC) designed for use in the 1050-1700 nm wavelength range. This coating reduces unwanted reflections, improving the efficiency and performance of the lens. The coating is applied to both the front and back surfaces of the lens.

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