公开(公告)号：EP1862850A4

公开(公告)日：2010-11-03

申请号：EP06812100

申请日：2006-10-20

Applicant: SEIKO EPSON CORP

Inventor： MORIKUNI EIJI ,  YONEKUBO MASATOSHI ,  SAKAI TOSHIHIKO ,  KAMIJIMA SHUNJI

IPC: G02B17/08 ,  G03B21/10 ,  G03B21/28 ,  G03B21/62 ,  H04N5/74

CPC classification number: G03B21/28 ,  G02B17/08 ,  G02B17/0852 ,  G03B21/10 ,  G03B21/62

Abstract: An image display apparatus 100 that displays an image using a light modulated according to an image signal includes a projection optical system 90 that includes a projection lens 20, a first mirror 30 that reflects a light from the projection lens 20, and a second mirror 40 that widens an angle of a light from the first mirror 30 by reflecting the light, and projects the light modulated according to the image signal from an optical engine unit 10; a third mirror 50 that reflects a light from the projection optical system 90; and a screen 60 that transmits a light from the third mirror 50. The projection lens 20 and the second mirror 40 are arranged in such a manner that an optical axis of the projection lens 20 substantially matches an optical axis of the second mirror 40, and shift the light from the optical engine unit 10 to a specific side from the optical axis of the projection lens 20. It is possible to cause a light to travel accurately, to display an image, in a thin structure with a small non-display section adjacent to a screen.

Abstract translation: 使用根据图像信号调制的光来显示图像的图像显示装置100包括投影光学系统90，其包括投影透镜20，反射来自投影透镜20的光的第一反射镜30和第二反射镜40 通过反射光来扩大来自第一反射镜30的光的角度，并且投影根据来自光学引擎单元10的图像信号调制的光; 反射来自投影光学系统90的光的第三反射镜50; 以及透射来自第三反射镜50的光的屏幕60.投影透镜20和第二反射镜40以使投影透镜20的光轴与第二反射镜40的光轴大致一致的方式配置， 将光从光引擎单元10移动到与投影透镜20的光轴相对的特定侧。可以使光精确地行进，以将图像显示在具有小的非显示部分的薄结构中 毗邻屏幕。

公开(公告)号：EP0969306A4

公开(公告)日：2003-06-25

申请号：EP98955980

申请日：1998-11-27

Applicant: SEIKO EPSON CORP

Inventor： TAKEDA TAKASHI ,  YONEKUBO MASATOSHI ,  ITO HIROKAZU ,  KAMIJIMA SHUNJI

IPC: G02B26/08 ,  G09G3/34 ,  G02B26/02 ,  G09F9/30 ,  G09F9/37

CPC classification number: G09G3/3473 ,  G02B26/0816 ,  G09G2300/06 ,  G09G2310/06 ,  Y10S385/901

Abstract: A light guide part which can reflect a light totally and transfer the light, an optical switching part which has its extraction plane close to a totally reflective plane to capture an evanescent light and reflects and emits the evanescent light and a driving part which drives the optical switching part are layered in the direction of the light emission in this order to obtain an optical switching device with a hierarchical structure. By employing the hierarchical structure, the respective layers can be optimized. Especially, as the extracted light is not passed through the driving part, the driving part can be optimized to provide an optical switching device which can operate at a high velocity and with a low power consumption. Therefore, an optical switching device which shows the low loss of a light utilizing an evanescent wave, has a high response velocity and, further, shows a large contrast ratio can be provided.