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67-595 4.5mm Dia. x 9mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm

67-595 4.5mm Dia. x 9mm 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
4.5 mm
EFL
9 mm
BFL
8.16 mm
R1
8.88 mm
R2
-8.88 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

67-595 4.5mm Dia. x 9mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm

The 67-595 is a high-quality double-convex lens, boasting a 4.5mm diameter and a focal length of 9mm, sourced from the renowned optical vendor, Edmund Optics. This lens is specifically designed for use within the near-infrared (NIR) spectrum, covering the wavelength range of 750-1550nm, making it an ideal choice for applications requiring superior performance in this spectral region.

The lens features a sophisticated NIR II coating on both its front and back surfaces, ensuring optimal transmission and minimal reflection across the NIR spectrum. This coating is applied using Edmund Optics' standard curve, further enhancing the lens' performance and reliability.

The 67-595's geometry is another notable feature. It has an edge thickness of 1.8mm and a center thickness of 2.38mm, providing excellent structural integrity. The lens's effective focal length (EFL) is 9mm, and its front and back radii are 8.88mm and -8.88mm, respectively. The back focal length (BFL) is 8.16mm, and both the inner and outer radii are 0mm, indicating a purely spherical lens shape.

The lens is made from n-BK7 Schott, a widely used optical glass known for its excellent optical properties and versatility. This material, combined with the lens's double-convex design, ensures high-quality imaging and minimal aberrations.

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