JPS62175420U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of an optical pickup used in an embodiment of the present invention; Fig. a is a perspective view thereof, Fig. b is a top view thereof, Fig. b' is a view of the operating state of Fig. 2 is a block diagram showing the control system of the embodiment shown in FIG. 1, FIG. 3 is a flowchart showing its control operation, and FIG. 4 is its access time chart, which is different from the conventional one. A comparison is shown between (Figure a) and the present application (Figure b). Fig. 5 shows a conventional pickup; Fig. a is its perspective view, Fig. b is its top view, and Fig. c is its A-A'
FIG. DESCRIPTION OF SYMBOLS 1... Optical pickup, 2... Optical system, 3... Holder, 4... Ring spring, 5... Substrate, 6... Focus magnet, 6'... Focus coil, 7... Tracking magnet, 7'... Tracking coil,
8... Axis, 9... Bearing, 20... Optical disk, 21... Traverse drive mechanism, 28... Excitation coil control circuit,
50... Support column, 51... Front plate, 52... Ball, 53...
Sliding plate, 54...plate spring.

Claims (1)

[Scope of utility model registration request] In an optical pickup that includes at least an optical system that optically reads signals from a recording medium and an actuator that performs focus control and tracking control of this optical system, the optical system may be moved in the optical axis direction and perpendicular to the optical axis. An optical pickup characterized in that it is provided with a regulating mechanism that maintains its position while being in contact with one end of the optical pickup in the tracking direction.