JP7334187B2 - カメラモジュール及びこの動作方法 - Google Patents
カメラモジュール及びこの動作方法 Download PDFInfo
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/07—Hall effect devices
- G01R33/072—Constructional adaptation of the sensor to specific applications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated focusing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/0023—Electronic aspects, e.g. circuits for stimulation, evaluation, control; Treating the measured signals; calibration
- G01R33/0029—Treating the measured signals, e.g. removing offset or noise
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0053—Driving means for the movement of one or more optical element
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0053—Driving means for the movement of one or more optical element
- G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
Description
しかし、前記のようなオートフォーカス機能を提供するために設けられた位置センサは、周辺のノイズなどを含む感知信号を提供し、このため、正確な位置に前記レンズバレルの位置が調節されないという不都合がある。
前記マウント20の少なくとも一側面にフック20Hが設けられて、蓋体10の孔に結合される。
そして、制御部290は、前記決められた位置感知条件により、前記スイッチ340の切換え動作を制御する(S120)。
Claims (7)
- レンズアセンブリと、
前記レンズアセンブリを光軸方向に移動させるレンズ駆動部と、
前記レンズアセンブリの位置を検出する位置センサ部と、
前記位置センサ部を介して検出された前記レンズアセンブリの位置を基に、前記レンズ駆動部に、前記レンズアセンブリを目標位置に移動させるための駆動信号を出力する制御部とを含み、
前記位置センサ部は、
少なくとも1つの出力端子が相互接続された複数のセンサユニットと、
前記複数のセンサユニットに共通接続されたアンプと、
前記アンプに接続されるアナログ・デジタル変換器とを含み、
前記アンプは、反転端子及び非反転端子を含み、
前記アンプの反転端子は、
前記複数のセンサユニットのうち、第1のセンサユニットの第1の出力端子に接続され、
前記複数のセンサユニットのうち、前記第1のセンサユニットと異なる第2のセンサユニットの第2の出力端子に接続され、
前記第1のセンサユニットは、第1のホールセンサであり、
前記第2のセンサユニットは、第2のホールセンサであり、
前記第1の出力端子は、前記第1のホールセンサの正極性の出力端子であり、
前記第2の出力端子は、前記第2のホールセンサの負極性の出力端子であり、
一端が前記アンプの反転端子に接続され、他端が前記第1のホールセンサの負極性の出力端子、及び前記第2のホールセンサの負極性の出力端子のいずれか1つに選択的に接続されるスイッチを含むことを特徴とするカメラモジュール。 - 前記第1のセンサユニットは、前記複数のセンサユニットのうち、最初に配置されたセンサユニットであり、
前記第2のセンサユニットは、前記複数のセンサユニットのうち、最後に配置されたセンサユニットであることを特徴とする請求項1に記載のカメラモジュール。 - 前記第1のホールセンサの負極性の出力端子は、前記第2のホールセンサの正極性の出力端子に接続されることを特徴とする請求項1に記載のカメラモジュール。
- 前記第1のセンサユニットは、第1の誘導コイルであり、
前記第2のセンサユニットは、第2の誘導コイルであり、
前記第1の出力端子は、前記第1の誘導コイルの一端であり、
前記第2の出力端子は、前記第2の誘導コイルの他端であり、
前記第1の誘導コイルの他端は、前記第2の誘導コイルの一端に接続されることを特徴とする請求項2に記載のカメラモジュール。 - 更に、前記複数のセンサユニットは、前記第1のホールセンサ及び前記第2のホールセンサの間に配置された第3のホールセンサを含み、
前記第3のホールセンサの正極性の出力端子は、前記第1のホールセンサの負極性の出力端子に接続され、
前記第3のホールセンサの負極性の出力端子は、前記第2のホールセンサの正極性の出力端子に接続されることを特徴とする請求項1に記載のカメラモジュール。 - 前記レンズアセンブリは、ズームレンズ群を含む第1のレンズアセンブリと、フォーカスレンズ群を含む第2のレンズアセンブリとを含み、
前記位置センサ部は、前記第1のレンズアセンブリの位置を検出する第1の位置センサ部と、前記第2のレンズアセンブリの位置を検出する第2の位置センサ部とを含むことを特徴とする請求項1に記載のカメラモジュール。 - 位置センサ部の感知条件を決めるステップと、
前記決められた感知条件によりスイッチを制御し、アンプの反転端子が複数の感知ユニットのうち、最初に位置した感知ユニットの出力端子及び最後に位置した感知ユニットの出力端子のいずれか1つの出力端子に接続されるようにするステップと、
前記スイッチの制御により、前記アンプに入力される検出信号に対応するレンズアセンブリの位置を検出するステップと、
前記検出された位置により、前記レンズアセンブリを目標位置に移動させるステップとを含み、
前記検出するステップは、前記反転端子が前記最初に位置した感知ユニットの出力端子に接続されることにつれ、前記最初に位置した感知ユニットの出力信号を受信するステップと、前記反転端子が前記最後に位置した感知ユニットの出力端子に接続されることにつれ、前記複数の感知ユニットの組合わせによる差動信号を受信するステップとを含むことを特徴とするカメラモジュールの動作方法。
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PCT/KR2019/005596 WO2019216676A1 (ko) | 2018-05-11 | 2019-05-09 | 카메라 모듈 및 이의 동작 방법 |
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US (1) | US11397308B2 (ja) |
EP (2) | EP3792686B1 (ja) |
JP (2) | JP7334187B2 (ja) |
KR (2) | KR102547878B1 (ja) |
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KR20210117014A (ko) * | 2020-03-18 | 2021-09-28 | 엘지이노텍 주식회사 | 카메라 엑추에이터 및 이를 포함하는 카메라 장치 |
CN113890965A (zh) * | 2020-07-01 | 2022-01-04 | 华为技术有限公司 | 联动装置、摄像模组及电子设备 |
KR20230022650A (ko) * | 2021-08-09 | 2023-02-16 | 엘지이노텍 주식회사 | 카메라 모듈 |
KR102407367B1 (ko) | 2021-08-11 | 2022-06-10 | 엘지이노텍 주식회사 | 렌즈 구동장치 및 이를 포함하는 카메라 장치 |
KR20230076425A (ko) * | 2021-11-24 | 2023-05-31 | 엘지이노텍 주식회사 | 카메라 엑추에이터, 렌즈 이송 장치 및 이를 포함하는 카메라 장치 |
KR20230158195A (ko) * | 2022-05-11 | 2023-11-20 | 엘지이노텍 주식회사 | 카메라 모듈 및 이를 포함하는 광학기기 |
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2018
- 2018-05-11 KR KR1020180054081A patent/KR102547878B1/ko active Application Filing
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2019
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- 2019-05-09 CN CN202211406718.1A patent/CN115718397A/zh active Pending
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EP3792686A1 (en) | 2021-03-17 |
CN112384852A (zh) | 2021-02-19 |
CN112384852B (zh) | 2022-11-29 |
EP3792686A4 (en) | 2022-01-26 |
CN115718397A (zh) | 2023-02-28 |
EP4270077A3 (en) | 2024-02-07 |
US20210215905A1 (en) | 2021-07-15 |
JP2021523415A (ja) | 2021-09-02 |
KR20190129432A (ko) | 2019-11-20 |
JP2023157949A (ja) | 2023-10-26 |
KR102547878B1 (ko) | 2023-06-27 |
EP3792686B1 (en) | 2023-10-25 |
US11397308B2 (en) | 2022-07-26 |
EP4270077A2 (en) | 2023-11-01 |
KR20230095904A (ko) | 2023-06-29 |
WO2019216676A1 (ko) | 2019-11-14 |
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