| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum cleaner that increases visibility of dust to a user.SOLUTION: The vacuum cleaner includes an organic EL panel on a front side part of a suction tool and that allows the organic EL panel to be arranged without an increase in size of the suction tool, and a floor surface in front of the suction tool to be irradiated uniformly, since a plane light source is provided, thereby, the user can easily visually recognize the dust. The vacuum cleaner further includes a dust detection unit and increases the visibility of dust by shortening the wavelength of light as the dust becomes smaller, according to the size of the dust. |
