Patent ID: 8984546
Filing Date: 2015-03-17
Classification: G02B,G11B

Abstract:
1. An objective lens driving unit comprising: a moving structure including an objective lens and drive coils; a static structure including magnets opposing the drive coils, a yoke configured to support the magnets, and a wire holder including control wiring layers connected to the drive coils, each of the wiring layers comprising first and second terminals at respective ends thereof; suspension wires connecting the drive coils to the wiring layers; isolation ribs disposed between the first terminals and/or between the second terminals of the control wiring layers and configured to prevent a conductive material formed in each terminal from intruding into another terminal adjacent thereto, wherein the isolation ribs are disposed entirely parallel to a top surface and a bottom surface of the wire holder; and reinforcing ribs disposed on a rear surface of the wire holder configured to firmly secure the control wiring layers to a main body of the wire holder and comprising a surface extending outward from a rear surface of the wire holder.