公开(公告)号：EP1761074A1

公开(公告)日：2007-03-07

申请号：EP06005428.5

申请日：2006-03-16

申请人： Olympus Optical Corporation Limited

发明人： Sakai, Hiroshi Intellectual Property Support Dept ,  Yamanaka, Kazuya Intellectual Propert.Support Dept ,  Ito, Hideyuki Intellectual Property Support Dept

IPC分类号： H04N9/31 ,  G02F1/13357 ,  G02B27/28

CPC分类号： G02B27/281 ,  G02F1/133621 ,  G02F1/13473 ,  G02F2001/133622 ,  G02F2001/133638 ,  G09G3/002 ,  G09G3/007 ,  G09G3/346 ,  G09G3/3611 ,  G09G2310/0235 ,  G09G2320/0242 ,  G09G2320/0252 ,  H04N9/3117

摘要： An image display device includes a light source unit (100) which successively emits illumination lights of different colors which have wavelength bands different from one another in accordance with color information of an image signal, an image modulating unit (200) which successively modulates the illumination lights of different colors in accordance with the color information of the image signal and generates modulated lights, a light path shift unit (300) capable of shifting a light path of the modulated lights, and a projection optical unit (400) which projects the modulated lights, wherein the light path shift unit includes a first wavelength selectable polarization rotation device (310) configured to carry out rotation control on polarization directions of the modulated lights modulated by the image modulating unit in accordance with colors and a first birefringent plate (320) to which the modulated lights from the first wavelength selectable polarization rotation device are applied.

摘要翻译： 一种图像显示装置，包括：光源单元，其根据图像信号的颜色信息依次发射具有不同颜色的波长带的不同颜色的照明光;图像调制单元，其连续调制照明 根据图像信号的颜色信息产生不同颜色的光，并产生调制光;能够移动调制光的光路的光路移动单元（300）;以及投影光学单元（400），投影光学单元 光源，其中光路移动单元包括：第一波长可选择偏振旋转装置，被配置为根据颜色对第一双折射板进行由图像调制单元调制的调制光的偏振方向的旋转控制; 来自第一波长可选偏振旋转装置的调制光被应用于该光源 IED。