Patent attributes
A mirror driving device includes a rotating shaft, a first driving source, a mirror holder, a mirror, a rotating body, a guide, a moving mechanism, and a second driving source. The first driving source rotates the rotating shaft. The mirror holder is supported on the rotating shaft by a support shaft extending perpendicular to the rotating shaft and is rotatable about the support shaft. A holding part is provided at an edge of the mirror holder. The mirror holder is placed on the rotating body at a position located away from the support shaft. The guide is disposed at the holding part, and guides the holding part so as to be capable of changing a distance between the holding part and the rotating shaft. The moving mechanism moves the rotating body in a direction parallel to the rotating shaft in a state where the rotating body is rotatable with the rotating shaft. The second driving source moves the rotating body via the moving mechanism.
