THIN FLAT TYPE CONVERGE LENS

摘要

PURPOSE: A thin film flat type convergent lens is provided to be applied in a stereoscopic image display device of a thin film flat type holography method as converging a plane wave propagating in an incident angle horizontal to the propagation direction of a light to an arbitrary point of a propagation shaft. CONSTITUTION: A thin film flat type convergent lens(FL) includes a first film lens(FL1) and a second film lens(FL2). The first film lens is attached to one side of a first film substrate, and comprises a first transparent film where a first interference fringe is formed. The second film lens is attached to one side of a second film substrate, and comprises a second transparent film where a second interference fringe is formed. The first transparent film and the second transparent film are attached to face with each other.