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49-348 20 mm Dia. S-BAH11/N-SF10 Achromatic Doublet; EFL=30mm VIS-NIR 400-1000nm

49-348 20 mm Dia. S-BAH11/N-SF10 Achromatic Doublet; EFL=30mm VIS-NIR 400-1000nm

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

Properties

Shape
Circular
Diameter
20 mm
EFL
30 mm
R1
21.41 mm
R2
-13.75 mm

Material 1

Name
S-BAH11
Dispersion Equation
Sellmeier
n (λ)
1.6696557498333158
λ
550 nm
B1
1.5713886
C1
0.00910807936 μm2
B2
0.147869313
C2
0.0402401684 μm2
B3
1.28092846
C3
130.399367 μm2

Material 2

Name
N-SF10
Dispersion Equation
Sellmeier
n (λ)
1.7336618876174243
λ
550 nm
B1
1.62153902
C1
0.0122241457 μm2
B2
0.256287842
C2
0.0595736775 μm2
B3
1.64447552
C3
147.468793 μm2

49-348 20 mm Dia. S-BAH11/N-SF10 Achromatic Doublet; EFL=30mm VIS-NIR 400-1000nm

The 49-348 is a high-quality achromatic doublet lens, designed and manufactured by Edmund Optics. This lens is specifically engineered for use in the visible (VIS) and near-infrared (NIR) spectrum, with a wavelength range of 400-1000nm. The lens boasts a 20mm diameter and an effective focal length (EFL) of 30mm, making it suitable for a wide range of optical applications.

The lens is composed of two elements: S-BAH11 from Ohara and N-SF10 from Schott. These materials are carefully selected for their optical properties, contributing to the lens's overall performance. The lens is coated with EDm VIS-NIR 0SP2002000 on both the front and back surfaces, enhancing its transmission capabilities and reducing unwanted reflections.

The lens geometry is meticulously designed, with a center thickness of 8.4mm and edge thickness of 7.21mm. The radii of the curvatures are r1=21.41mm, r2=-13.75mm, and r3=-105.58mm. The lens also features an inner radius of 0mm and an outer radius of 0mm.

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