| 摘要 |
PROBLEM TO BE SOLVED: To provide a device capable of pointing to an object in real space from an instruction terminal arranged in a remote place. SOLUTION: A projection device 1 comprises a camera 11 for photographing an object, a transmitting/receiving means for transmitting image information photographed by the camera 11 to the other device and receiving instruction coordinate information (x, y) from the other device, a calculation means for calculating a projection angle (θ,Ψ) which is a viewing angle on the basis of the instruction coordinate information, and a projection means 12 arranged close to the camera 11 and capable of projecting a light point to the object on the basis of the projection angle. The calculation means defines an image center point (x<SB>max</SB>/2, y<SB>max</SB>/2) of image information as the projection angle (0°, 0°). The projection means 12 can control two axes (θ,Ψ). COPYRIGHT: (C)2004,JPO&NCIPI
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