Objective driver

Abstract

Abstract PURPOSE:To simplify a construction, to reduce the number of parts and to facilitate assembly by using a printed wiring board having flexibility in which a wiring pattern is prepared at a side and supporting a bobbin. CONSTITUTION:The titled device has a printed wiring board 2 having the flexibility in which supporting arm pieces made into respective pairs in an orthogonal direction and a bobbin 4 to support an objective are provided. Supporting arm pieces 10a and 10b made into a first pair of the printed wiring board 2 are bent in order to be opposite to each other, and the bobbin 4 is supported at the point side of the supporting arm pieces. Simultaneously, supporting arm pieces 11a and 11b made into a second pair are bent in order to be opposite to each other in a reverse direction of the extending direction of the supporting arm pieces 10a and 10b, and the point side of the supporting arm pieces are fitted to a supporting base 15. A driving current for controlling is supplied to a driving coil 7 for controlling a focusing, and a driving coil 8 for controlling a tracking which are fitted to the bobbin 4. Thus, the number of the parts can be reduced, the construction can be made simple, and the assembly can be made easy.

Inventors

• 👤 Koji Takagi

Bibliographic Details