| 摘要 |
PROBLEM TO BE SOLVED: To reduce the size and weight of an oscillation mirror type scanner, to eliminate the necessity of a rotary shaft, a bearing and a mechanical return spring and to attain an optional required maximum rotation angle. SOLUTION: This scanner has an oscillation mirror 1m, a rotational oscillator 1 with oscillation magnets 1g, a rotational oscillator pivoting means 2 for rotatably pivoting the oscillator 1, and an electric driving coil 4 surrounding the oscillator 1. The means 2 consists of an oscillator pivoting plate 21, a bendable plate 22, a roof type projected body 23, and a mounting base 24. The plate 22 is made of a flexible and elastic material and is recessed on both the right and left side faces like a curve. The projected body 23 projects its front like a roof shape so as to rotate the oscillator 1 up to an optional required maximum rotation angle. The magnetic flux of each oscillation magnet 1g crosses with the coil 4. |
