45-900 40mm Dia. x 60mm 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
- 60 mm
- BFL
- 57.1 mm
- R1
- 60.56 mm
- R2
- -60.56 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
40mm Diameter x 60mm FL Double-Convex Lens with VIS-NIR Coating
This 40mm diameter x 60mm focal length (FL) double-convex lens, sourced from Edmund Optics, is a high-quality optical component designed for use in the visible to near-infrared (VIS-NIR) spectrum, specifically covering the 400-1000nm range.
The lens features a base shape of a circle and is constructed with a Schott n-BK7 material, a popular choice for its excellent optical properties and versatility. The lens's geometry includes a diameter of 40mm, an edge thickness of 2mm, and a center thickness of 8.8mm. The effective focal length (EFL) is 60mm, and the radii of curvature are 60.56mm for the first surface and -60.56mm for the second surface. The back focal length (BFL) is 57.1mm.
The lens's surfaces are coated with the EDM VIS-NIR 0SP2002000 coating on both the front and back, enhancing its performance in the VIS-NIR spectrum. This coating reduces surface reflections and increases transmission, making it suitable for various applications, including imaging, beam shaping, and laser systems.