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AL1225M-A 12.5 mm Dia. N-BK7 High-Precision; CNC Polished Aspheric Lenses; EFL=25 mm; NA=0.23 AR 350-700nm

AL1225M-A 12.5 mm Dia. N-BK7 High-Precision; CNC Polished Aspheric Lenses; EFL=25 mm; NA=0.23 AR 350-700nm

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

Properties

Shape
Circular
Diameter
12.5 mm
EFL
25 mm
R1
12.78 mm
R2

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5111833144579327
λ
780 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

AL1225M-A 12.5 mm Dia. N-BK7 High-Precision; CNC Polished Aspheric Lenses; EFL=25 mm; NA=0.23 AR 350-700nm

The AL1225M-A is a high-precision asperic lens offered by Thorlabs, a leading global manufacturer of photonics equipment. This lens boasts a 12.5 mm diameter and is crafted from N-BK7, a popular glass type known for its excellent optical properties.

The lens's asphere design, combined with CNC polishing, ensures high-quality imaging and minimal spherical aberration. The effective focal length (EFL) is 25 mm, making it suitable for a wide range of optical applications.

The lens's numerical aperture (NA) is 0.23, indicating a wide acceptance angle and high light-gathering capability. It features anti-reflection (AR) coatings on both surfaces, optimized for the 350-700 nm wavelength range, which reduces surface reflections and improves transmission.

This lens is available for immediate purchase and is currently in stock, according to the vendor's website. For more information, including technical drawings and specifications, please refer to the provided weblink.

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