| 摘要 |
PURPOSE: An advertising method is provided to give specific effect of advertize in cloudy day using a laser beam and cloud. CONSTITUTION: The advertising method using laser beam and cloud comprises the step of forming content of specific advertise by the laser beam from a laser projector; injecting the laser a cloud in the sky; forming an image of content to the cloud which is made by vapor. The laser beam in the laser tube displays a symbol and a character and a file with advertising
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