High Quality Spherical Lenses

Spherical lenses are lenses with at least one curving surface. They converge or diverge light, change the path of light and affect the wavefront curvature of light. They  are widely used in medical imaging, laser optics, security monitoring, automotive industry, military industry, aerospace and other high-tech fields.

What are the kinds of spherical lenses?

1. Plano Convex Lenses

A plano convex lens is a lens that is flat on the one side and convex on the other. Plano convex lenses converge parallel light, correct the deflected light and convert point light sources into parallel light. When light enters from the convex surface of the plano convex lens, the light will converge to a point on the convex surface. When a point light source enters from the plane of the plano convex lens, the light will be turned into a parallel beam. The focal length of a plano convex lens can vary depending on wavelength. Plano convex lenses can be used in transmitters, detectors and lasers.

2. Plano Concave Lenses

A plano concave lens is a lens that is flat on the one side and concave on the other side. The plano concave lens deviates from the parallel incident light and fors a visible virtual image. The collimated beams through the plano concave lens become divergent beams.  In the optical system, plano concave lenses are possible to enlarge the light beam, increase the focal length, project light, and cancel the aberrations of additional lenses in the optical system. Plano concave lenses can be used in laser beam expanders, telescopes, collimators, optical transceivers, magnifiers and radiometers.