Camera module

A technology for camera modules and electrode parts, which is applied in the direction of cameras, camera bodies, instruments, etc., and can solve the problems of high power consumption of lens moving devices and increasing the total thickness of camera modules, etc.

Active Publication Date: 2019-09-10
LG INNOTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the lens shifter has high power consumption, and in order to protect the lens shifter, a cover glass needs to be added in addition to the camera module
Therefore, increasing the overall thickness of the camera module

Method used

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Examples

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Embodiment Construction

[0078] A liquid lens according to an embodiment includes: a core plate, in which cavities for accommodating a conductive liquid and a non-conductive liquid are formed; an electrode unit provided at the core plate, the electrode unit being connected to the conductive liquid; an isolation unit, It is provided at the electrode unit for preventing contact between the electrode unit and the non-conductive liquid; and a control unit for controlling the voltage applied to the electrode unit, wherein the electrode units electromagnetically interact with each other to change the conductive liquid A first electrode of an interface with the non-conductive liquid and a second electrode, the first electrode includes a plurality of electrode parts sequentially arranged in a circumferential direction around the optical axis, and the control unit sequentially controls voltages applied to the electrode parts.

[0079] Mode of the invention

[0080] Hereinafter, embodiments will be described wi...

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PUM

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Abstract

Provided is a camera module, and a camera module, according to an embodiment, comprises: a core plate having a cavity for accommodating a conductive liquid and a nonconductive liquid; an electrode unit disposed on the core plate and electrically connected to the conductive liquid; an insulating unit disposed in the electrode portion and blocking contact of the nonconductive liquid; and a control unit for controlling voltages applied to the electrode unit, wherein the electrode unit includes a first electrode and a second electrode that change the interface between the conductive liquid and thenonconductive liquid by electromagnetic interaction, the first electrode includes a plurality of electrode sectors arranged sequentially along a circumferential direction about an optical axis, and the control unit includes a liquid lens that sequentially controls voltages applied to the plurality of electrode sectors.

Description

technical field [0001] Embodiments relate to camera modules including liquid lenses. More particularly, embodiments relate to camera modules including a liquid lens whose focal length can be adjusted using electrical energy. Background technique [0002] In this section, the following description only provides background information about the embodiments and may not constitute prior art. [0003] People who use portable devices demand optical devices that are high-resolution, compact, and have various shooting functions such as optical zoom-in / zoom-out functions, auto-focus (AF) functions, and shake compensation or optical image stabilization (OIS) functions. Such a shooting function can be achieved by directly moving multiple lenses used together. However, in the case of increasing the number of lenses, the size of the optical device increases. [0004] The camera module is a module of a camera that takes a photo or video of a subject. An example of such a camera module...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B13/32G02B3/14G02B27/64G03B17/12H04N5/225G02B7/02
CPCG02B3/14G02B7/02G02B27/64G03B13/32G03B17/12G02B26/005H04N23/00H04N23/55H04N23/67
Inventor 朴昇龙金薰
Owner LG INNOTEK CO LTD
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