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89-119 3mm Dia. x 4.5mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm

89-119 3mm Dia. x 4.5mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm

Type
Lens
Subtype
Spherical Lens (Convex-Convex)
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
3 mm
EFL
4.5 mm
BFL
3.78 mm
R1
4.29 mm
R2
-4.29 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5167984379050088
λ
587.6 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

89-119 3mm Dia. x 4.5mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm

This is a 3mm diameter, double-convex lens with a focal length of 4.5mm, sourced from Edmund Optics. The lens is made from n-BK7 Schott material, a popular choice for its high refractive index and low dispersion. The base shape of the lens is circular, and it features a spherical geometry with specific radii and thicknesses that contribute to its optical performance.

The lens has an outer radius of 0mm and an inner radius of 0mm, indicating a uniform thickness. The edge thickness is 1.47mm, while the center thickness is 2mm. The front and back surfaces of the lens are coated with EDM VIS-EXT, a broadband anti-reflection coating designed for use in the visible spectrum, specifically between 350 and 700nm. This coating enhances the lens's transmission capabilities and reduces unwanted reflections.

The lens's design and coating make it suitable for a wide range of applications within the specified wavelength range. However, it's essential to consider the lens's specific parameters and the requirements of your application to ensure a proper fit.

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