ILLUMINATION SYSTEM WITH DIFFUSER PLATE USING THREE DIMENSIONAL STRUCTURE

摘要

PURPOSE: An illumination system with a diffuser plate using a three dimensional structure is provided to control light distribution by forming a conical structure in an incident surface and a reflection surface. CONSTITUTION: A lighting apparatus comprises a case(2), a light source(3), and a spreading plate(4). The light source is arranged inside the case. The light source is either an LED(Light Emitting Diode) or CCFL(Cold Cathode Fluorescent Lamp). The spreading plate is arranged in front of the light source. A three-dimensional pattern is formed in the single-side of the spreading plate. The three-dimensional pattern is a plurality of multi-planar structures(4a).