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49-796 25.4 mm Dia. N-BAK1/N-SF15 Achromatic Doublet; EFL=101.6mm VIS-NIR 400-1000nm

49-796 25.4 mm Dia. N-BAK1/N-SF15 Achromatic Doublet; EFL=101.6mm VIS-NIR 400-1000nm

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

Properties

Shape
Circular
Diameter
25.4 mm
EFL
101.6 mm
R1
66.33 mm
R2
-47.95 mm

Material 1

Name
N-BAK1
Dispersion Equation
Sellmeier
n (λ)
1.5746241031015316
λ
550 nm
B1
1.12365662
C1
0.00644742752 μm2
B2
0.309276848
C2
0.0222284402 μm2
B3
0.881511957
C3
107.297751 μm2

Material 2

Name
N-SF15
Dispersion Equation
Sellmeier
n (λ)
1.7038049870312608
λ
550 nm
B1
1.57055634
C1
0.0116507014 μm2
B2
0.218987094
C2
0.0597856897 μm2
B3
1.50824017
C3
132.709339 μm2

49-796 25.4 mm Dia. N-BAK1/N-SF15 Achromatic Doublet; EFL=101.6mm VIS-NIR 400-1000nm

The 49-796 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 is constructed from two types of glass, N-BAK1 and N-SF15, which are renowned for their excellent optical properties.

The lens has a diameter of 25.4mm and an effective focal length (EFL) of 101.6mm, making it suitable for a wide range of optical applications. The lens features a multilayer anti-reflection coating, denoted as 'edm visnir0sp2002000', which is applied to both the front and back surfaces. This coating enhances the lens's transmission efficiency and reduces unwanted reflections, thereby improving overall system performance.

The lens geometry is characterized by its edge thickness of 6.32mm, inner radius of 0mm, outer radius of 0mm, and center thickness of 5mm. The lens also features a central thickness 'a' of 3mm. The curvature of the lens surfaces is defined by three radii: r1=66.33mm, r2=-47.95mm, and r3=-178.05mm.

The lens is currently in stock and available for immediate purchase. For more information, please refer to the vendor's website using the provided weblink.

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