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13-014 25 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=225mm MgF2 400-700nm

13-014 25 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=225mm 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
225 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

13-014 25 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=225mm MgF2 400-700nm

This is the 13-014 25 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet, a high-quality optical component sourced from Edmund Optics. The doublet lens, designed for use in the 400-700nm spectrum, boasts an effective focal length (EFL) of 225mm, making it suitable for a wide range of optical applications.

The lens is constructed from two types of glass: N-BK7 and N-SF5, both from Schott. This combination helps to correct chromatic aberration, a common issue in optical systems where different wavelengths of light are focused at different points. The use of these materials ensures that the lens provides clear, high-contrast images across the specified wavelength range.

The lens has a diameter of 25mm and a thickness of 6.75mm at the edge. The center thickness is 5mm, with a 2.5mm thickness at the edge of the aperture. The lens features a doublet geometry, with radii of curvature of 160.73mm and -105.64mm for the first and second surfaces, respectively, and a -295.75mm radius for the third surface.

The lens is coated with Edmund Optics' standard MgF2 coating on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission, enhancing the performance of the lens in a variety of lighting conditions.

The lens is mounted, making it ready for immediate use in optical systems. The weblink provided leads to the product page on the Edmund Optics website, where users can find more information, including current pricing and availability.

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