This is a 50mm diameter, double-convex lens with a 50mm focal length, specifically designed for use in the visible to near-infrared spectrum (VIS-NIR), covering the wavelength range of 400-1000nm. The lens is sourced from the reputable vendor, Edmund Optics.
The lens features a base shape of a circle and is made from the material n-sf11 schott. It has a front and back coating of edm visnir0sp2002000, which is a VIS-NIR coating. The lens has an outer radius of 0 and an inner radius of 0, indicating a uniform curvature.
The geometry of the lens includes a thickness edge of 7.39 and a thickness center of 16. The effective focal length (EFL) is 50, and the back focal length (BFL) is 45.3. The first radius of curvature (R1) is 74.78, and the second radius of curvature (R2) is -74.78, indicating a double-convex shape.
This lens is a spherical lens, which means it has a spherical surface. The double-convex design allows for a wide field of view and low distortion, making it suitable for various applications in the VIS-NIR spectrum.
Please note that the weblink provided leads to the product page on the Edmund Optics website, where you can find more information and check the current availability of the lens.