45-862 6mm Dia. x 18mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6 mm
- EFL
- 18 mm
- BFL
- 17.26 mm
- R1
- 18.22 mm
- R2
- -18.22 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
45-862 6mm Dia. x 18mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
The 45-862 is a high-quality double-convex lens, boasting a 6mm diameter and a focal length of 18mm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for immediate purchase, as indicated by its "in stock" status on the vendor's website.
The lens is constructed from Schott's n-BK7 glass, a material well-known for its excellent optical properties, including a high Abbe number and low dispersion. This makes the lens particularly suitable for applications that require high image quality and color correction, such as microscopy, beam shaping, and laser focusing.
The lens features a double-convex geometry, with radii of curvature of 18.22mm and -18.22mm for the first and second surfaces, respectively. This geometry results in a back focal length of 17.26mm and an effective focal length of 18mm. The lens has a central thickness of 2.2mm and an edge thickness of 1.7mm, providing robustness and durability.
The lens is coated with Edmund Optics' VIS-NIR coating (edm visnir0sp2002000) on both the front and back surfaces. This coating is designed to enhance the lens's performance in the visible and near-infrared regions of the spectrum, specifically between 400nm and 1000nm. The coating reduces reflection, increases transmission, and improves the lens's overall optical efficiency.
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