Lens barrel mechanical interference prevention measures for camera module voice coil motor design

摘要

A camera module has an image sensor and a lens assembly that includes a lens barrel having a first cylindrical portion that includes an externally threaded portion and a second cylindrical portion that has a larger diameter than the externally threaded portion. A lens moving mechanism includes a movable sleeve having internal threads that receive the externally threaded portion of the lens assembly. The lens moving mechanism is coupled to the image sensor such that the second cylindrical portion of the lens assembly is closest to the image sensor. The camera module is assembled by inserting the lens assembly into the lens moving mechanism from the side closest to the image sensor. An installation tool may engage the second cylindrical portion to rotate the lens assembly and engage the threaded portions. Features may be provided to retain the lens assembly in the lens moving mechanism before joining the threaded portions.

主权项

1. A camera module comprising:
a lens assembly that includes a lens barrel having a first cylindrical portion that includes an externally threaded portion and a second cylindrical portion that has a larger diameter than the externally threaded portion; an external cylindrical surface on the second cylindrical portion of the lens assembly; at least one protruding tab included on the external cylindrical surface; an image sensor; a lens moving mechanism that includes a movable sleeve having internal threads that receive the externally threaded portion of the lens assembly, the lens moving mechanism being coupled to the image sensor such that the second cylindrical portion of the lens assembly is closest to the image sensor, the lens moving mechanism having an opening to receive the lens assembly that requires alignment of the at least one protruding tab to a corresponding recess in the opening of the lens moving mechanism.