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Mobile terminal and camera module thereof

A camera module and lens technology, used in image communication, TV, color TV components and other directions, can solve the problems of increased driving current and increased power consumption, and achieve the effect of reducing power consumption and achieving optical image stabilization.

Pending Publication Date: 2022-06-21
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The corresponding problem is that the maximum drive current increases, resulting in increased power consumption

Method used

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  • Mobile terminal and camera module thereof
  • Mobile terminal and camera module thereof
  • Mobile terminal and camera module thereof

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Embodiment Construction

[0041] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the related drawings. The preferred embodiments of the present application are shown in the accompanying drawings. However, the application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the disclosure of this application is provided.

[0042]As used herein, "terminal equipment" refers to a device capable of receiving and / or sending communication signals, including but not limited to, connected via any one or several of the following connection methods:

[0043] (1) Connection via wired line, such as via public switched telephone network (Public SwitchedTelephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection;

[0044] (2) Via ...

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Abstract

The invention relates to a mobile terminal and a camera module thereof, the camera module comprises a lens base, a lens and a piezoelectric driving unit, the lens is movably arranged on the lens base through a carrier, the piezoelectric driving unit comprises an annular piezoelectric plate, a first friction head and a second friction head, the annular piezoelectric plate surrounds the peripheral side of the lens and is connected with the lens base, and the first friction head is connected with the annular piezoelectric plate. The annular piezoelectric plate drives the first friction head to drive the carrier to move along a first direction under a first preset voltage so as to compensate shooting jitter of the lens in the first direction, and the annular piezoelectric plate drives the second friction head to drive the carrier to move along a second direction under a second preset voltage so as to compensate shooting jitter of the lens in the second direction. The first direction and the second direction intersect. According to the mobile terminal and the camera module thereof, the motion stroke of the carrier is only related to the periodicity of the control signal of the voltage introduced into the annular piezoelectric plate, so that when long-stroke motion needs to be realized, the maximum current does not need to be increased, and the power consumption can be effectively reduced.

Description

technical field [0001] The present application relates to the technical field of mobile terminals, and in particular, to mobile terminals and camera modules thereof. Background technique [0002] Shooting is a common function of mobile terminals such as mobile phones and tablet computers, and users have higher and higher requirements for the quality of the captured images, so the anti-shake design during shooting of mobile terminals becomes particularly important. [0003] Traditional camera modules generally use a voice coil motor (VCM) to generate thrust to move the lens in a direction perpendicular to the optical axis to achieve optical image stabilization. [0004] However, the thrust force of the existing voice coil motor is not enough, and the stroke for moving the lens is too small, so it is difficult to realize motion control with high precision and large stroke at the same time. For voice coil motors, there is usually a certain relationship between current and stro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N5/232
CPCH04N23/50H04N23/55H04N23/651H04N23/687
Inventor 陈伟
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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