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47-906 12mm Dia. x -24 FL; VIS 0deg Coated; Plano-Concave Lens 425-675nm

47-906 12mm Dia. x -24 FL; VIS 0deg Coated; Plano-Concave Lens 425-675nm

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

Properties

Shape
Circular
Diameter
12 mm
EFL
-24 mm
BFL
-26.32 mm
R1
-12.4 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

47-906 12mm Dia. x -24 FL; VIS 0deg Coated; Plano-Concave Lens 425-675nm

The 47-906 is a Plano-Concave Lens with a 12mm diameter and a -24 FL focal length, sourced from Edmund Optics. This lens is designed for use within the visible light spectrum, specifically between 425-675nm. The lens is made from n-BK7 Schott material, a popular choice due to its high homogeneity, low auto-fluorescence, and excellent transmittance in the visible spectrum.

The lens features a plano-concave geometry, meaning one side is flat while the other is curved inward. The inner radius is 0mm, and the outer radius is also 0mm, indicating a sharply curved surface. The lens has a thickness of 4.79mm at the edge and 3.5mm at the center. The back focal length (BFL) is -26.32mm, and the effective focal length (EFL) is -24mm.

The lens is coated with the EDM VIS-0 STD curve on both the front and back surfaces. This coating enhances the lens's performance within the visible light spectrum, providing improved transmission and reduced reflection. The lens's coating and material composition make it suitable for a wide range of applications, including but not limited to, imaging systems, beam shaping, and laser applications.

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