US 7,518,793 B2
Stereoscopic image display device using image splitter, adjustment method thereof, and stereoscopic image display system
Ken Mashitani, Osaka (Japan); Goro Hamagishi, Osaka (Japan); Takahisa Andou, Nara (Japan); Satoshi Takemoto, Osaka (Japan); Masahiro Higashino, Osaka (Japan); and Nobutake Kawamori, Osaka (Japan)
Assigned to Sanyo Electric Co., Ltd., Osaka (Japan)
Filed on Mar. 28, 2003, as Appl. No. 10/400,484.
Claims priority of application No. 2002-095333 (JP), filed on Mar. 29, 2002; application No. 2002-095334 (JP), filed on Mar. 29, 2002; application No. 2003-086892 (JP), filed on Mar. 27, 2003; application No. 2003-086903 (JP), filed on Mar. 27, 2003; and application No. 2003-088326 (JP), filed on Mar. 27, 2003.
Prior Publication US 2004/0008251 A1, Jan. 15, 2004
Int. Cl. G02B 27/22 (2006.01)
U.S. Cl. 359—464  [348/54] 24 Claims
OG exemplary drawing
 
1. A stereoscopic image display system comprising:
an image display means for displaying images taken from a plurality of viewpoints;
an optical splitting means for splitting image light from said image display means into stereo pairs of images corresponding to viewer's eyes;
a control means for controlling said image display means to display predetermined images; and
a means for judging instructions from a viewer, wherein
the control means controls the image display means to display the predetermined images including (1) a first image for a right eye and a second image for a left eye for generating interference fringes and (2) an image including additional images for checking a state of the interference fringes, in order to help the viewer who is at an integral submultiple of an optimal viewing distance recognize a condition of the optical splitting means from the relationship between the additional images and the interference fringes generated by said image display means and the optical splitting means, and adjust a position of the optical splitting means.