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48-344 9mm Dia. x -9mm FL; VIS 0deg Coated; Double-Concave Lens 425-675nm

48-344 9mm Dia. x -9mm FL; VIS 0deg Coated; Double-Concave Lens 425-675nm

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

Properties

Shape
Circular
Diameter
9 mm
EFL
-9 mm
BFL
-9.61 mm
R1
-14.6 mm
R2
14.6 mm

Material

Name
N-SF11
Dispersion Equation
Sellmeier
n (λ)
1.7847141030246312
λ
587.6 nm
B1
1.73759695
C1
0.013188707 μm2
B2
0.313747346
C2
0.0623068142 μm2
B3
1.89878101
C3
155.23629 μm2

48-344 9mm Dia. x -9mm FL; VIS 0deg Coated; Double-Concave Lens 425-675nm

The 48-344 is a spherical lens with a base shape of a circle, sourced from the reputable vendor Edmund Optics. This lens is a Double-Concave type, designed for use within the visible light spectrum, specifically at a wavelength of 587.6nm. The lens has a diameter of 9mm and a focal length of -9mm, making it a powerful tool for a variety of optical applications.

The lens features a center thickness of 2.25mm and an edge thickness of 3.48mm, providing a robust structure while maintaining a compact form factor. The inner and outer radii are both 0, indicating a symmetrical design. The back focal length (BFL) is -9.61mm, a critical specification for precise optical alignment.

The 48-344 lens is constructed from n-sf11 Schott material, a high-index glass known for its excellent optical properties. This material, combined with the lens's concave-concave geometry, allows for superior light bending and focusing capabilities.

The lens is coated with 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 coating is standard, ensuring reliability and consistency in its performance.

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