| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens frame of an optical pickup device with simple structure, which can adjust easily a mutual eccentricity and distance of a plurality of lenses, and can be fixed maintaining high accuracy over the long-term. SOLUTION: The lens frame 1 of the optical pickup device has a first fixing member 3 to fix a first lens 2 facing an optical recording medium, second fixing member 5 to fix a second lens 4, a third fixing member 6 interposing between the first and second fixing members, a first contact surface 71 which is the contact surface of the first and the third fixing member, and is inclined to the optical axes X and Y of the first and second lens, and a second contact surface 72 which is the contact surface of the second and the third fixing member, and is intersected perpendicularly to the optical axes X and Y. The first and second fixing member is relatively displaced along each contact surface to the third fixing member at the time of assembling, and the mutual distance and eccentricity of the plurality of lenses are adjusted. |
