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49-953 15 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=20mm VIS-NIR 400-1000nm

49-953 15 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=20mm VIS-NIR 400-1000nm

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

Properties

Shape
Circular
Diameter
15 mm
EFL
20 mm
R1
14.01 mm
R2
-11.36 mm

Material 1

Name
N-BAF10
Dispersion Equation
Sellmeier
n (λ)
1.6730569473646495
λ
550 nm
B1
1.5851495
C1
0.00926681282 μm2
B2
0.143559385
C2
0.0424489805 μm2
B3
1.08521269
C3
105.613573 μm2

Material 2

Name
N-SF57
Dispersion Equation
Sellmeier
n (λ)
1.854148364121864
λ
550 nm
B1
1.87543831
C1
0.0141749518 μm2
B2
0.37375749
C2
0.0640509927 μm2
B3
2.30001797
C3
177.389795 μm2

49-953 15 mm Dia. N-BAF10/N-SF57 Achromatic Doublet; EFL=20mm VIS-NIR 400-1000nm

The 49-953 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens is specifically designed for use in the visible (VIS) and near-infrared (NIR) spectrum, spanning 400-1000nm. The lens features a 15mm diameter and an effective focal length (EFL) of 20mm, making it suitable for a wide range of optical applications.

The lens is composed of two elements: N-BAF10 and N-SF57, both from Schott's extensive material library. These materials are carefully selected for their optical properties, contributing to the lens's overall performance. The lens is coated with Edmund Optics' VIS-NIR coating (edm visnir0sp2002000) on both the front and back surfaces, further enhancing its capabilities in the specified wavelength range.

The geometry of the lens is meticulously designed, with a center thickness of 6.8mm and edge thickness of 5.98mm. The lens's radii are also precisely engineered, with r1 at 14.01mm, r2 at -11.36mm, and r3 at -44.21mm. These specifications contribute to the lens's excellent imaging performance.

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