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AL1512 15 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=12 mm; NA=0.55 Uncoated

AL1512 15 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=12 mm; NA=0.55 Uncoated

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

Properties

Shape
Circular
Diameter
15 mm
EFL
12 mm
R1
9.32 mm
R2

Material

Name
S-LAH64
Dispersion Equation
Sellmeier
n (λ)
1.7768959986651893
λ
780 nm
B1
1.83021453
C1
0.0090482329 μm2
B2
0.29156359
C2
0.0330756689 μm2
B3
1.28544024
C3
89.3675501 μm2

AL1512 15 mm Dia. S-LAH64 High-Precision; CNC Polished Aspheric Lenses; EFL=12 mm; NA=0.55 Uncoated

The AL1512 is a high-precision aspheric lens offered by Thorlabs, designed with a 15 mm diameter and a NA (Numerical Aperture) of 0.55. This lens is made from S-LAH64, a high-quality optical glass from Ohara, which ensures excellent optical performance. The lens's design includes a polished aspheric surface, providing improved imaging quality over spherical lenses by reducing spherical aberration.

The lens's geometry includes an effective focal length (EFL) of 12 mm, an inner radius of 0 mm, and an outer radius of 0 mm. The thickness at the edge is 2.1 mm, while the center thickness is 5.3 mm. The aspheric surface is defined by a conic constant of -1, with aspheric coefficients a2, a4, a6, a8, a10, a12, a14, and a16, which are 0, 5.7598697e-05, -2.503422e-08, -6.7519988e-10, -2.0018474e-12, 3.8684828e-15, 1.2447477e-16, and -3.659331e-19, respectively.

The AL1512 lens does not come with any coating, as indicated in the item data. However, coatings can be added to enhance the lens's performance, such as anti-reflective coatings to reduce surface reflections or protective coatings to increase durability.

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