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67-632 15mm Dia. x 25mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm

67-632 15mm Dia. x 25mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm

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

Properties

Shape
Circular
Diameter
15 mm
EFL
25 mm
BFL
23.82 mm
R1
25.23 mm
R2
-25.23 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

67-632 15mm Dia. x 25mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm

This is a 15mm diameter, double-convex lens with a focal length of 25mm, specifically designed for use in the near-infrared (NIR) spectrum. The lens is sourced from Edmund Optics, a leading provider of optical components, and is currently in stock.

The lens is made from N-BK7 Schott glass, a popular material for optical elements due to its excellent optical properties and wide transparency range. The lens features a standard NIR-II coating on both the front and back surfaces, which enhances its performance in the NIR spectrum, particularly in the 750-1550nm range.

The geometry of the lens includes an edge thickness of 1.22mm and a center thickness of 3.5mm. The front and back radii of curvature are 25.23mm and -25.23mm, respectively, resulting in a back focal length of 23.82mm. The lens has no inner or outer radius, indicating a uniform thickness.

This lens is a spherical lens, meaning it has a spherical surface. This shape is commonly used in optical systems due to its simplicity and versatility. The lens's double-convex design, where both surfaces are convex, provides a strong focusing power, making it suitable for various applications.

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