Piezoelectric actuator for digital camera optical system
Originating portfolio: TECH
Estimated expiration: 2022-Jun-05
Potentially relevant companies (11): Canon, Inc., Clarion Co., Ltd., Fujifilm Corporation, Garmin Corporation, GoPro, Inc., Kyocera, Logitech Europe S A, Nest Labs, Inc., Nikon Corporation, Olympus Corporation, Panasonic Corporation
Products & technologies (1): Imaging:Cameras
A support for an optical system 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, mounted for relative coaxial movement, which support a lens element. At least one of the tubes is adjustable in position relative to a main support tube. The adjustable tube is engageable by piezoelectric elements. Each piezoelectrical element is mounted to a flexible printed circuit board which contains the camera operating system and is mounted on the support tube.
1. An adjustable support for an optical system of a digital camera comprising:
a fixed tubular support having a longitudinal axis, said fixed tubular support being secured within said camera;
a moveable tubular support mounted for relative movement doaxially on the fixed tubular support;
a lens, mounted on the moveable tubular support in operative association with said optical system;
a flexible printed circuit board mounted on the fixed tubular support; and
at least one piezoelectric element having at least two active volumes which are independently excitable, said at least one piezoelectric element mounted and connected to said flexible printed circuit board, said piezoelectric element being deformable in response to an applied voltage to engage the moveable support and move said support along said longitudinal axis.
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