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LA1540-780 N-BK7 Plano-Convex Lens; Dia:0.5 in; f=15.0 mm 780nm V-Coat

LA1540-780 N-BK7 Plano-Convex Lens; Dia:0.5 in; f=15.0 mm 780nm V-Coat

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
15 mm
BFL
11.56 mm
R1
7.7 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

LA1540-780 N-BK7 Plano-Convex Lens; Dia:0.5 in; f=15.0 mm 780nm V-Coat

The LA1540-780 is a Plano-Convex lens, part of the extensive catalog of optical elements offered by Thorlabs. This lens is designed for use in the 780nm wavelength range, featuring a V-coat on both the front and back surfaces. The lens is made of n-BK7 Schott glass, a popular material due to its excellent optical properties and wide transmission range.

The lens has a diameter of 0.5 inches (12.7mm) and a thickness at the edge of 1.8mm, while the center thickness is 5.1mm. The effective focal length (EFL) is 15mm, and the radius of curvature (R1) is 7.7mm. The back focal length (BFL) is 11.56mm, and the lens does not have any inner or outer radius.

The V-coat on the LA1540-780 is designed for high reflectivity at 780nm, making it ideal for applications that require precise control over light at this wavelength. The coating is applied to both the front and back surfaces of the lens, ensuring optimal performance from all angles.

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