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67-610 9mm Dia. x 18mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm

67-610 9mm Dia. x 18mm 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
9 mm
EFL
18 mm
BFL
17.12 mm
R1
18.15 mm
R2
-18.15 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

67-610 9mm Dia. x 18mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm

The 67-610 is a high-performance double-convex lens, designed and manufactured by Edmund Optics, specifically for use in the near-infrared (NIR) spectrum. This lens boasts a 9mm diameter and a focal length of 18mm, making it suitable for a wide range of applications that require precise optical performance in the NIR range.

The lens is constructed from N-BK7 Schott glass, a material well-known for its excellent optical properties, including high transmittance and low dispersion. This ensures that the lens delivers sharp, clear images with minimal chromatic aberration.

The 67-610 features a unique coating profile, with both the front and back surfaces coated with Edmund Optics' NIR-II standard curve coating. This coating is specifically designed to enhance the lens' performance in the NIR spectrum, improving its transmission and reducing reflections. The result is a lens that delivers superior image quality in the 750-1550nm range.

In terms of geometry, the lens has a center thickness of 2.6mm and an edge thickness of 1.47mm. The front and back radii of curvature are 18.15mm and -18.15mm, respectively, resulting in a back focal length of 17.12mm. The lens' spherical shape ensures excellent focus and minimal distortion.

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