The 63-543 is a 15mm diameter, double-convex lens with a 20mm focal length, sourced from Edmund Optics. This lens is uncoated, meaning it does not have any additional layers to protect or enhance its optical properties. The base shape of the lens is circular, and it is a spherical lens, which means it has a curved surface that refracts light evenly in all directions.
The geometry of the lens includes a thickness of 1.63mm at the edge and 3.5mm at the center. The effective focal length (EFL) is 20mm, and the radii of curvature are 30.6mm for the first surface and -30.6mm for the second surface. The back focal length (BFL) is 18.99mm. The lens does not have any inner or outer radius specified, indicating that it is a simple, double-convex lens.
The lens is made of n-SF11 Schott, a high-index glass with excellent transmittance in the visible and near-infrared regions. The wavelength for this lens is 587.6nm, which is in the green part of the visible spectrum.
This lens is a versatile optical component, suitable for a wide range of applications that require a simple, high-quality lens. Its uncoated design makes it suitable for use in environments where coatings might be damaged or unnecessary. However, it may be more susceptible to scattering and absorption than coated lenses.