Collection: Biconvex Hand-held Magnifiers

Bi-convex lenses are manufactured with an identical convex surface on both sides of the lens - in other words, there is one concave lens on both faces.  Bi-convex lenses have positive focal lengths and form both real and virtual images.  If the lens is biconvex or plano-convex, a collimated beam of light travelling parallel to the lens axis and passing through the lens will be converged to a spot on the axis, at a certain distance behind the lens, known as the focal length. 

Eschenbach manufactures a 'Large Field' series of Biconvex hand-held magnifiers, which offers the largest fields available in their power range. The Biconvex PXM^® lightweight lenses have anti-static coating and the mount is composed of transparent PXM^®.