Spherical lens element GCL-0102 series

bi-convexBK7visible

Similar to plano-convex lenses, biconvex lenses also have a positive focal length and can focus parallel light beams. Since both the front and rear surfaces of a biconvex lens are convex spherical surfaces and the radii of curvature are equal, in applications where the object-image distances are equal or approximately equal, a biconvex lens can significantly reduce spherical aberration. Additionally, it can also improve coma and distortion. When the conjugate ratio is between 5:1 and 1:5, the aberration introduced by a biconvex lens is minimized. • Material：H-K9L (CDGM) • 1/4 Wave MgF2 Coating, average reflection less than 2.5% at 400-700nm