| 摘要 |
PROBLEM TO BE SOLVED: To provide a display device with which an observer easily recognizes a marker in the vicinity while observing far real space. SOLUTION: The display device mounted on an observer's head and presenting an image to the observer is provided with 1st cameras 2 and 3 for photographing the video (real space) of external environment, 2nd cameras 4 and 5 for photographing the marker (virtual image) for alignment, and a display part synthesizing the videos imaged by the 1st and the 2nd cameras and displaying the video. Then, focal distances in imaging by the 1st and the 2nd cameras are different from each other. COPYRIGHT: (C)2004,JPO&NCIPI
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