Lens holder driving device capable of inhibiting driving coil from peeling from lens holder

摘要

A lens holder driving device includes a lens holder for holding a lens assembly and a ring-shaped driving coil fixed to the lens holder. The lens holder has N bonded surfaces for bonding N areas of an inner surface of the driving coil to a tubular portion of the lens holder by means of an adhesive agent. At least one of the N bonded surfaces has a peeling inhibiting arrangement for inhibiting the driving coil from peeling from the lens holder after the N areas of the inner surface of the driving coil are bonded to the N bonded surfaces by means of the adhesive agent.

主权项

1. A lens holder driving device comprising:
a lens holder including a tubular portion for holding a lens assembly, the tubular portion having an upper outside surface at an upper side thereof; and a ring-shaped driving coil fixed to said lens holder so as to be positioned at an outside circumference of the tubular portion such that the driving coil is apart from the upper outside surface of the tubular portion, wherein said lens holder has N bonded surfaces for bonding N areas of an inner surface of said driving coil to the tubular portion by means of an adhesive agent, respectively, where N represents an integer which is not less than two, the N bonded surfaces projecting from a lower side surface of the tubular portion in a radial direction outwardly, the lower side surface of the tubular portion extending from the upper outside surface of the tubular portion, wherein at least one of said N bonded surfaces has a peeling inhibiting member for inhibiting said driving coil from peeling from said lens holder after the inner surface of said driving coil is bonded to said N bonded surfaces at the N areas thereof by means of said adhesive agent, wherein said peeling inhibiting member comprises at least one peeling preventing groove which is formed on at least one of said N bonded surfaces so as to extend in a different direction from a direction in parallel with a direction of an optical axis, wherein said lens holder further comprises, in the tubular portion, a filling member for pouring the adhesive agent into said N bonded surfaces, and wherein said filling member comprises inclined paths formed in said tubular portion in a slanting position upward from said N bonded surfaces.