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45-271 50 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=500mm MgF2 400-700nm

45-271 50 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=500mm MgF2 400-700nm

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

Properties

Shape
Circular
Diameter
50 mm
EFL
500 mm
R1
305.74 mm
R2
-223.2 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

45-271 50 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=500mm MgF2 400-700nm

The 45-271 is a high-quality achromatic doublet lens, sourced from the renowned optical components vendor, Edmund Optics. This lens is specifically designed for use in the 400-700nm wavelength range, making it suitable for a wide array of optical applications.

The lens features a 50mm diameter and an effective focal length (EFL) of 500mm, providing a substantial working distance for your optical setup. The achromatic design, which combines N-BK7 and N-SF5 glass types, effectively minimizes chromatic aberration, ensuring sharp and clear imaging.

The lens is coated with MgF2, a standard coating that offers excellent transmission properties in the visible spectrum. This coating enhances the lens's light-gathering capabilities, reducing unwanted reflections and improving overall image quality.

The geometry of the lens includes a center thickness of 8mm, with an edge thickness of 10.51mm, providing robustness and durability. The lens's design also includes a 305.74mm radius of curvature for the first surface and a -223.2mm radius for the second surface, with a third surface having a -663.82mm radius.

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