45-871 9mm Dia. x 45mm 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
- 9 mm
- EFL
- 45 mm
- BFL
- 44.17 mm
- R1
- 46.08 mm
- R2
- -46.08 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
45-871 9mm Dia. x 45mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
The 45-871 is a high-quality double-convex lens, boasting a 9mm diameter and a 45mm focal length. 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 popular material in the optical industry due to its excellent optical properties and versatility. The lens features a double-convex geometry, with radii of curvature of 46.08mm and -46.08mm for the first and second surfaces, respectively. This geometry results in a back focal length of 44.17mm and an effective focal length of 45mm.
The lens is coated with a VIS-NIR coating, specifically the EDM VISNIR0SP2002000 coating, on both the front and back surfaces. This coating is designed to enhance the lens' performance in the visible and near-infrared spectrum, specifically between 400nm and 1000nm. The coating reduces reflection and increases transmission, thereby improving the overall efficiency and quality of the optical system in which the lens is used.