公开(公告)号：US20160196849A1

公开(公告)日：2016-07-07

申请号：US14908472

申请日：2014-08-12

Applicant: LG ELECTRONICS INC.

Inventor： Nakyeong KIM ,  Byounggyo AHN

IPC: G11B7/1353 ,  G11B7/1395 ,  G11B7/1365

CPC classification number: G11B7/1365 ,  G03H2210/22 ,  G03H2222/31 ,  G11B7/0037 ,  G11B7/0065 ,  G11B7/08564 ,  G11B7/135 ,  G11B7/1356 ,  G11B7/1362 ,  G11B7/1372 ,  G11B7/1378 ,  G11B2007/0009 ,  G11B2007/00656 ,  G11B2007/13727

Abstract: Provided is a holographic data storage system characterized by including: a first polarizing beam splitter (PBS), wherein at least either of a first lens module and a second lens module transmits P-polarized light and reflects S-polarized light; a relay lens collecting light passing through the first PBS; a mirror reflecting the light collected through the relay lens back to the relay lens; and a quarter wave plate located between a second PBS beam splitter and the relay lens, converting transmitted linearly polarized light into circularly polarized light, and converting the circularly polarized light into linearly polarized light. By reducing the volume of the relay lens, it is possible to decrease the size of the holographic data storage system, and by decreasing the number of lenses, it is possible to lower manufacturing costs.

Abstract translation: 提供一种全息数据存储系统，其特征在于包括：第一偏振分束器（PBS），其中第一透镜模块和第二透镜模块中的至少一个透射P偏振光并反射S偏振光; 收集穿过第一PBS的光的中继透镜; 将通过中继透镜收集的光反射回中继透镜的镜子; 以及位于第二PBS分光器和中继透镜之间的四分之一波片，将透射的线偏振光转换成圆偏振光，并将圆偏振光转换成线偏振光。 通过减小中继透镜的体积，可以减小全息数据存储系统的尺寸，并且通过减少透镜数量，可以降低制造成本。