Miniaturised optical display system with high lateral and axial resolution

摘要

The optical reproduction system has high lateral and axial resolution and a refractive plano-convex lens in form of a homogeneous optical ball lens element (22) and an optical system (2) with the gradient index (GRIN) optics (23). The flat side of ball lens element is defined at an even inlet surface (21) of the optical system, where the inlet surface is aligned orthogonal to a common optical axis (24) of the optical system and transmission system (4).The former GRIN lens (231) is provided downstream to latter GRIN lens (232) for adaptation of transferred light beam to the aperture.