PASSIVE DAMPING FOR OPTICAL IMAGE STABILIZATION

摘要

Passive dampers (e.g., a viscoelastic material such as a silicon gel) may be applied at one or more locations within an actuator module between a moving component (an optics assembly) and a fixed component (e.g., a cover attached to a base). The passive dampers act to passively dampen the motion of the optics assembly on the XY plane within the actuator module during optical image stabilization (OIS) of the optics assembly when subjected to external excitation or disturbance, and may also provide Z (optical) axis damping and impact protection. Process control and automation manufacturing and assembly methods for an OIS voice coil motor (VCM) actuator module including passive dampers are described, as well as design elements that provide for the integrity and reliability of the passive dampers over the life cycle of the actuator module.

主权项

1. An apparatus, comprising:
an optics assembly comprising an optics component, wherein the optics assembly is configured to move within the apparatus on one or more axes orthogonal to an optical axis of the optics component; a fixed component substantially covering the optics assembly; and one or more passive dampers disposed between an upper surface of the optics assembly and an inner surface of the fixed component, wherein the passive dampers are configured to passively dampen motions of the optics assembly within the apparatus.