Vendor-unknown Newest Products Plano Convex Lens

Limited quantities available. 6 x 12 only.

A plano-convex lens is described by its diameter and focal length. For example, a 6″x9″ lens will have a diameter of 6″ and a 9″ focal length. The shorter the focal length, relative to the diameter of the lens, the wider the beam of light; thus, a 6″x12″ lens will emit a beam of light 3/4 the width of the 6″x9″ lens. When two plano-convex lenses are used “belly-to-belly”, their effective combined focal length is halved. For example, two 6″x9″ lenses belly-to-belly will have an effective focal length of 4½”.