33-422 40mm Dia. x 80mm 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
- 40 mm
- EFL
- 80 mm
- BFL
- 77.32 mm
- R1
- 81.3 mm
- R2
- -81.3 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
33-422 40mm Dia. x 80mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
This is a high-quality double-convex lens from the renowned optical components manufacturer, Edmund Optics. The lens, identified as 33-422, has a diameter of 40mm and a focal length of 80mm, making it a versatile choice for various applications.
The lens is made from the high-grade material, n-BK7 Schott, which is known for its excellent optical properties and durability. The base shape of the lens is circular, and it features a double-convex geometry, with radii of curvature of 81.3mm for the first surface and -81.3mm for the second surface. This geometry results in a high-quality image with minimal distortion.
The lens has a thickness of 3mm at the edge and 8mm at the center, providing robustness and stability. The effective focal length (EFL) is 80mm, and the back focal length (BFL) is 77.32mm. The lens does not have any inner or outer radius, indicating a uniform thickness across the lens.
The lens is coated with a VIS-NIR coating, specifically the EDM VISNIR0SP2002000 coating, on both the front and back surfaces. This coating enhances the lens's performance in the visible (VIS) and near-infrared (NIR) regions, specifically between 400nm and 1000nm. The coating improves the lens's transmission, reduces reflection, and increases the overall system's efficiency.