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    • 91. 发明授权
    • Display illumination system and manufacturing method thereof
    • 显示照明系统及其制造方法
    • US07315671B2
    • 2008-01-01
    • US10545128
    • 2004-01-20
    • Hubertina Petronella Maria HuckRifat Ata Mustafa Hikmet
    • Hubertina Petronella Maria HuckRifat Ata Mustafa Hikmet
    • G02B6/02G02B6/10
    • G02B6/0056G02B5/3008G02F1/133615G02F1/13362G02F1/13363G02F2201/02G02F2202/022
    • An illumination system (8) comprises an optical waveguide (18) which is made from optically transparent components and has four end faces (10, 10′). A light source (12) whose light is coupled into the optical waveguide (18) via one of the end faces (10), is situated opposite this end face (10). The optical waveguide (18) has a light guide (30). A number of fibers (34) are attached to a surface (32) of the light guide (30). The fibers (34) have birefringent properties. A preferred method of providing the birefringent properties is to stretch fibers (34) of a suitable polymer plastic material in their longitudinal direction. The light from the light source (12) will be polarized by the fibers (34) and polarized light will be outcoupled from the optical waveguide (18) via an exit surface (16). The illumination system (8) may be used for front or back lightning of LCD panels for e.g. mobile phones, PDA's, etc.
    • 照明系统(8)包括由光学透明部件制成并具有四个端面(10,10')的光波导(18)。 其光通过端面(10)之一耦合到光波导(18)中的光源(12)位于与该端面(10)相对的位置。 光波导(18)具有光导(30)。 许多纤维(34)附接到光导(30)的表面(32)。 纤维(34)具有双折射性质。 提供双折射性质的优选方法是在其纵向方向上拉伸合适的聚合物塑料材料的纤维(34)。 来自光源(12)的光将被光纤34极化,并且偏振光将经由出射表面(16)从光波导(18)外耦合。 照明系统(8)可以用于例如LCD面板的前部或后部闪电。 手机,PDA等