Liquid lens and camera module including same
A liquid lens and camera module technology, applied in the direction of the lens, camera, camera body, etc., can solve the problems of increased overall thickness, large power consumption, etc., and achieve the effect of correcting distortion
Active Publication Date: 2020-12-15
LG INNOTEK CO LTD +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, the lens shifter consumes a lot of power, and in order to protect the lens shifter, a cover glass needs to be provided separately from the camera module, resulting in an increase in the overall thickness
Method used
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[0039] Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. While the disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings. However, the present disclosure should not be construed as limited to the embodiments set forth herein, but on the contrary, this disclosure is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the embodiments.
[0040] It is to be understood that although terms such as "first" and "second" may be used herein to describe various elements, these elements should not be limited by these terms. These terms are generally only used to distinguish one element from another. In addition, terms specifically defined in consideration of the configuration and operation of the embodiment are only used to describe the embodiment, and do not limit the scope of the embodiment. ...
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Abstract
The present invention provides a camera module comprising: a lens assembly which includes a liquid lens and at least one solid lens arranged above or below the liquid lens, the liquid lens including aplurality of individual electrodes and a common electrode; a driving driver which supplies a voltage through the common electrode and at least one of the plurality of individual electrodes in the liquid lens in order to control the interface of the liquid lens; an electrostatic capacity measurement circuit which measures the capacitance between the common electrode and the at least one of the plurality of individual electrodes in the liquid lens; an operation state storage unit which stores information pertaining to a capacitance that changes in response to a temperature change in the liquidlens; and a control unit which determines the temperature inside the liquid lens on the basis of the information and the capacitance measured by the electrostatic capacity measurement circuit.
Description
technical field [0001] The present disclosure relates to a liquid lens and a camera module including the liquid lens. More particularly, the present disclosure relates to a camera module and optical device including a control module or control device for controlling a liquid lens capable of adjusting focus using electrical energy. Background technique [0002] People who use portable devices demand high-resolution optical devices that are compact and have various shooting functions (for example, optical zoom-in / out functions, auto-focus (AF) functions, hand-shake compensation, or optical image stabilizer (OIS) functions, etc.) . These shooting functions can be realized by directly moving multiple lenses that are combined. However, in the case of increasing the number of lenses, the size of the optics increases. the autofocus function and the hand shake compensation function are performed by moving or tilting several lens modules fixed to the lens holder so as to be aligne...
Claims
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IPC IPC(8): G03B17/12G03B13/32G03B5/00G02B3/12G02B7/09
CPCG03B13/32G02B7/021G02B3/14G02B7/08G03B29/00G03B17/12G03B5/00G02B3/12G02B7/09G03B30/00G03B2217/007G02B27/646
Inventor 李奎泰
Owner LG INNOTEK CO LTD