| 摘要 |
PROBLEM TO BE SOLVED: To surely complete projection and display of a series of images by managing batteries being a power source in accordance with practical operation. SOLUTION: A projector includes: the batteries 34 for supplying operation power of the projector as the power source; a light source lamp 18; projection systems 14-17, 19-24 for projecting toward a projection object by using light of the light source lamp 18 to form light images; an operation part 29 for inputting projection time periods by the projection systems 14-17, 19-24; and control systems 25-28 for adjusting an emission state of the light source lamp 18 by the projection time input with the operation part 29 and a remaining capacity of the batteries 34. COPYRIGHT: (C)2010,JPO&INPIT
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