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Lens driving device

A lens actuator and lens technology, used in instruments, televisions, cameras, etc., can solve the problems of lens thickness limitation, lens eccentricity, lens tilt, etc., and achieve the effect of improving driving power, improving control characteristics, and reducing power consumption.

Active Publication Date: 2020-10-16
LG INNOTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the separation distance between objects increases, there is a contradiction in the technical problem that lens decentering or lens tilt occurs when the zoom moves or the zoom movement is reversed
[0008] In addition, there is a technical problem in that since a compact camera module has a size limitation, it is difficult to implement a zoom function applied in a general large camera due to a space limitation for zooming
[0009] For example, as the height of mobile phones becomes thinner (slim), the thickness of the lens is limited

Method used

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Examples

Experimental program
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Embodiment Construction

[0070] Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

[0071] On the other hand, in the description of the embodiments, in the case of being described as being formed on the "top / bottom" or "over / under" of each element, the "top / bottom" or "over / under" means two components. These components are all in direct contact with each other, or one or more other components are formed indirectly between two components.

[0072] Furthermore, when expressed as 'top / bottom' or 'over / under', not only upward direction but also downward direction may be included based on a configuration.

[0073] Furthermore, relational terms used hereinafter such as "top / upper portion / over" and "lower / lower portion / under" may not require or imply any physical or logical relationship or order between these parts or elements. . Can be used to distinguish one part or element from another part or element.

[0074] Also, in the description of the e...

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PUM

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Abstract

An embodiment relates to a lens driving device and a camera module including same. A lens driving device according to an embodiment may comprise: a base; a pin coupled to the base; a housing includinga group of lenses to be moved along the pin in an optical axis direction; a magnet disposed on one side of the housing; a yoke spaced apart from the magnet; and a coil disposed between the magnet andthe yoke. The housing may include a guide hole disposed at one side thereof and a guide groove disposed at the other side thereof. The pin may include a first pin disposed in the guide hole, and a second pin disposed in the guide groove. An attractive force may be applied between the yoke and the magnet.

Description

technical field [0001] Embodiments relate to a lens (lens) actuator and a camera module including the same. Background technique [0002] The camera module performs a function of photographing an object and storing it as an image or video, and is mounted on a mobile terminal such as a mobile phone, a notebook computer, a drone, or a vehicle. [0003] On the other hand, portable devices such as smartphones, tablet PCs, and laptops have built-in micro camera modules, and these camera modules can automatically adjust the distance between the image sensor and lens to align The focal length of the lens. [0004] Recently, a camera module may perform a zoom function of zooming up or zooming out by using a zoom lens to increase or decrease a magnification of a distant (distant, distant) object. For the camera module, the demand for high magnification zoom exceeding 2 times increases. [0005] On the other hand, when the camera is moved in the camera module to realize the zooming...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B5/02G03B17/12G02B7/00
CPCG03B30/00G03B2205/0069G03B3/10G03B5/00G03B2205/0046H04N23/55G03B5/02G03B17/12G02B7/003G03B2205/0053
Inventor 金敬源催岘镐
Owner LG INNOTEK CO LTD
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