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Camera module and operation method therefor

A camera module, inverting terminal technology, applied in the direction of the camera, the camera body, the camera focusing device, etc., can solve the problem of the limitation of noise characteristics, and achieve the effect of excellent characteristics and space saving

Active Publication Date: 2021-02-19
LG INNOTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, conventional position sensors can improve noise characteristics through signal processing at the stage of the drive unit, but there is a limit to improving noise characteristics only through signal processing

Method used

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  • Camera module and operation method therefor
  • Camera module and operation method therefor
  • Camera module and operation method therefor

Examples

Experimental program
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Embodiment Construction

[0050] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

[0051] Also, when an embodiment is described as being formed "on / under" or "over / under" each element, "on / under" or "over / under" includes two elements directly contacting each other, or at least one other element. An element is indirectly arranged between two elements, and the expressions of "upper / lower" or "above / under" may include not only an upward direction with respect to one element, but also a downward direction with respect to an element.

[0052] Furthermore, relative terms such as "upper / above / above" and "under / below / under" used hereinafter do not require or imply any physical or logical relationship or order between these components or elements, but may be used in Distinguishes one component or element from another.

[0053] Also, in the description of the embodiments, terms such as "first" and "second" may be used to describe various elements, but these term...

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PUM

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Abstract

A camera module, according to one embodiment, comprises: a lens assembly; a lens driving unit for moving the lens assembly in the direction of the optical axis; a position sensor unit for detecting the position of the lens assembly; and a control unit for, on the basis of the position of the lens assembly detected by the position sensor unit, outputting, to the lens driving unit, a drive signal for moving the lens assembly to a target position, wherein the position sensor unit comprises a plurality of sensor units which have at least one output terminal connected with each other, an amplifierwhich is commonly connected with the plurality of sensor units, and an analog-digital converter which is connected to the amplifier.

Description

technical field [0001] Embodiments relate to a camera module and a method of operating the same. Background technique [0002] The camera module performs a function of photographing a subject and storing it as an image or video, and is installed in a mobile terminal such as a mobile phone, a laptop, a drone, a vehicle, and the like. [0003] In addition, ultra-compact camera modules are housed in portable devices such as smartphones, tablets, and laptops, and the above-mentioned camera modules can perform an autofocus (AF) function by automatically adjusting the distance between the image sensor and the lens. to align the focal length of the lens. [0004] The auto focus function is an essential function in the camera module for capturing still images or videos clearly. Regarding the auto focus function, when the position sensor is used to detect the position of the lens barrel in which the magnet is mounted, and a drive signal is supplied to the drive unit based on the de...

Claims

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Application Information

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IPC IPC(8): G03B13/36G03B3/10G03B17/12H04N5/225G02B7/28G03B30/00
CPCG03B3/10G03B30/00G03B2205/0069G02B7/08G01R33/0029G01R33/072H04N23/55G03B13/36G03B17/12G02B7/28H02K11/215G03B2205/0053G01D5/145
Inventor 金玟吴俊锡
Owner LG INNOTEK CO LTD
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