67-609 9mm Dia. x 13.5mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 9 mm
- EFL
- 13.5 mm
- BFL
- 12.56 mm
- R1
- 13.46 mm
- R2
- -13.46 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
67-609 9mm Dia. x 13.5mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm
The 67-609 is a high-quality double-convex lens, boasting a 9mm diameter and a focal length of 13.5mm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is currently in stock, ready for immediate use.
The lens is constructed from N-BK7 Schott, a popular optical glass due to its excellent homogeneity, low optical dispersion, and high transmittance in the visible and near-infrared regions. The base shape of the lens is circular, and it features a spherical geometry, with a center thickness of 2.75mm and an edge thickness of 1.2mm. The effective focal length (EFL) is 13.5mm, and the back focal length (BFL) is 12.56mm.
The 67-609 lens is coated with Edmund Optics' standard NIR-II coating on both the front and back surfaces. This coating is specifically designed for the near-infrared II region, covering the wavelength range of 750-1550nm, making it ideal for applications such as night vision, thermal imaging, and spectroscopy.
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