| 摘要 |
PROBLEM TO BE SOLVED: To realize an optical pickup device light in weight and low in cost. SOLUTION: A shielding plate 7 is formed of an elastic metallic material as an unnecessary radiation noise protecting means. Then, the back surface of an optical base 1 is covered by the plate 7 and a contact 7a is directly brought into contact with the ground section of a laser unit 2. Thus, a radiation noise is surely protected, thus the objective optical pickup device light in weight and low in cost can be realized. |
