| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable close-range projection using an image projection device having no distortion correction function. <P>SOLUTION: The holding device 10 of the image projection device includes joints 15 to 17 and arms 12 to 14, and couples the image projection device 1 with an installation object or an installation surface, and includes: a signal input unit 30 in which an image signal is input from an information processor 3; inclination detector 20 to 22 which are provided in the joints 15 to 17 and detect inclination formed by the joints 15 to 17; an angle calculator 32 which calculates an angle formed by a projection axis of the image projection device 1 with a projection surface 2 based on the detected results by the inclination detector 20 to 22; a distortion corrector 33 which performs distortion correction of an image signal based on the calculated results by the angle calculator 32; and a signal output unit 31 which outputs an image signal corrected by the distortion corrector 33 to the image projection device 1. <P>COPYRIGHT: (C)2011,JPO&INPIT |
