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89-155 12mm Dia. x 48mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm

89-155 12mm Dia. x 48mm 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
12 mm
EFL
48 mm
BFL
47.09 mm
R1
49.14 mm
R2
-49.14 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

89-155 12mm Dia. x 48mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm

The 89-155 is a double-convex lens offered by Edmund Optics, boasting a 12mm diameter and a focal length of 48mm. This lens is designed for use within the visible light spectrum, specifically between 350-700nm, making it suitable for a wide range of optical applications.

The lens is constructed from Schott's n-BK7 glass, a popular choice due to its excellent optical properties and versatility. The base shape of the lens is circular, and it features a double-convex geometry, with radii of curvature of 49.14mm on both the front and back surfaces. This geometry contributes to the lens's high optical power and short focal length.

The 89-155 lens comes with VIS-EXT coatings on both the front and back surfaces. These coatings, specific to the visible light spectrum, are designed to enhance the lens's transmission capabilities and reduce surface reflections. The edge thickness of the lens is 2mm, while the center thickness is 2.74mm, contributing to its robustness and durability.

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