POLARIZATION SEPARATION DEVICE AND APPLICATION TO A LIGHTING SYSTEM OF A LIQUID CRYSTAL SCREEN

摘要

This polarization separation device comprises a double prism (DPC) having an input face (A1) receiving a beam of non-polarized light (F) a polarization splitter (FC, HOE) transmitting the polarized light in a first direction of polarization and reflecting light polarized in a second direction of polarization. The double prism (DPC) also has a reflection face (A3) provided with a mirror (M3) receiving the light reflected by the polarization splitter as well as an output face (A2) receiving and transmitting the light transmitted by the polarization splitter (FC) and reflected by the mirror (M3). BR/ Applications: Liquid crystal display.