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49-290-INK 50 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=500mm VIS 0° 425-675nm

49-290-INK 50 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=500mm VIS 0° 425-675nm

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

49-290-INK 50 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=500mm VIS 0° 425-675nm

The 49-290-INK is a high-quality achromatic doublet lens, sourced from the renowned optical component vendor, Edmund Optics. This lens, with a diameter of 50 mm, is designed for use in the visible light spectrum, specifically between 425 and 675 nm. The lens boasts an effective focal length (EFL) of 500 mm, making it suitable for a wide range of optical applications.

The lens is composed of two elements, made from N-BK7 and N-SF5 Schott glass, respectively. These materials are chosen for their excellent optical properties, contributing to the lens's high performance. The lens features a standard curve coating on both the front and back surfaces, further enhancing its capabilities.

The geometry of the lens is carefully designed, with a thickness at the edge of 10.51 mm and a center thickness of 8 mm. The lens also features a central thickness 'a' of 4 mm. The radii of the lens surfaces are also precisely engineered, with r1 at 305.74 mm, r2 at -223.2 mm, and r3 at -663.82 mm.

According to the provided data, the lens is currently in stock and available for immediate use. For more detailed information, including pricing and additional specifications, please refer to the vendor's website using the provided weblink.

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