PIEZOELECTRIC ACTUATOR FOR DIGITAL CAMERA OPTICAL SYSTEM

摘要

A support for an optical system (1) of a digital camera is constructed which provides adjustable positioning of the lens elements in response to signals from the camera control processor. The support comprises multiple tubes (9, 10), mounted for relative coaxial movement, which support a lens element (2). At least one of the tubes is adjustable in position relative to a main support tube (9). The adjustable tube (10) is engageable by piezoelectric elements (11-13). Each piezoelectrical element is mounted to a flexible printed circuit board (14) which contains the camera operating system and is mounted on the support tube (9).