| 摘要 |
PURPOSE:To simplify the structure and to attain miniaturization by arranging an elastic metallic member to a box shaped moving part holding a lens in an optical disc recording and reproducing device in a direction orthogonal to a light axis and driving a lens in three directions, directions of optical axis and of elastic metallic member. CONSTITUTION:The lens 20 is moved forward/backward by a plate spring 25 and moved vertically and horizontally by a rod spring 27. then elastic metallic members 25, 27 provide power to coils 21-23. A middle member 26 is made of a very light member, e.g., a printed board and wiring copper foil between the members 25 and 27 is printed. Since the structure is simple, the actuator is made inexpensively and miniaturization is attained. |
