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32-919 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=250mm MgF2 400-700nm

32-919 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=250mm MgF2 400-700nm

Type
Lens
Subtype
Multiplets
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25 mm
EFL
250 mm
R1
160.73 mm
R2
-105.64 mm

Material 1

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5185223876207927
λ
550 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

Material 2

Name
N-SF5
Dispersion Equation
Sellmeier
n (λ)
1.6771143911586193
λ
550 nm
B1
1.52481889
C1
0.011254756 μm2
B2
0.187085527
C2
0.0588995392 μm2
B3
1.42729015
C3
129.141675 μm2

32-919 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=250mm MgF2 400-700nm

The 32-919 is a high-quality achromatic doublet lens, sourced from the renowned optical component vendor, Edmund Optics. This lens is specifically designed for use in the 400-700nm spectral range, making it suitable for a wide range of applications in the visible light spectrum.

The lens features a 25mm diameter and a focal length of 250mm, providing a high level of optical performance and versatility. The doublet design is composed of two elements, made from N-BK7 and N-SF5 Schott glass, respectively. This combination helps to correct chromatic aberrations, ensuring sharp and clear images.

The lens is coated with Edmund Optics' standard MgF2 coating on both the front and back surfaces. This coating enhances the lens's transmission in the visible spectrum, reduces surface reflections, and provides protection against environmental hazards.

The geometry of the lens includes a thickness of 6.75mm at the edge, with a central thickness of 5mm and a 2.5mm thickness at the edge of the first surface. The lens's first and second radii are 160.73mm and -105.64mm, respectively, while the third radius is -295.75mm.

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