JP2021001932A - 位置検出装置および光学機器 - Google Patents
位置検出装置および光学機器 Download PDFInfo
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- 238000003384 imaging method Methods 0.000 description 27
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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
- G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—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 characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
- G01D5/2451—Incremental encoders
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
-
- 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
- G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/028—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring lateral position of a boundary of the object
-
- 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
-
- 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
- G03B13/18—Focusing aids
-
- 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
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
- H04N23/663—Remote control of cameras or camera parts, e.g. by remote control devices for controlling interchangeable camera parts based on electronic image sensor signals
-
- 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
-
- 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
- G03B2205/0046—Movement of one or more optical elements for zooming
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Structure And Mechanism Of Cameras (AREA)
- Studio Devices (AREA)
Abstract
Description
103 ズーム操作環
103a 第1のスライダカム溝部
103b 第2のスライダカム溝部
106a 第1のズームエンコーダ
106b 第2のズームエンコーダ
106c 第1のスライダ
106d 第2のスライダ
106m 回転角度検出回路
Claims (11)
- 第1のカムおよび第2のカムが形成され、回転可能な回転部材と、
前記回転部材の回転に伴って前記第1のカムによって移動される第1の移動部を有し、該第1の移動部の位置に応じた第1の信号を出力する第1の検出手段と、
前記回転部材の回転に伴って前記第2のカムによって移動される第2の移動部を有し、該第2の移動部の位置に応じた第2の信号を出力する第2の検出手段と、
前記第1の信号および前記第2の信号を用いて前記回転部材の回転位置を取得する回転位置取得手段とを有し、
前記第1のカムは、前記回転部材の第1の回転範囲と該第1の回転範囲に続く第2の回転範囲において前記第1の移動部を移動させ、
前記第2のカムは、前記回転部材の前記第2の回転範囲と該第2の回転範囲に続く第3の回転範囲において前記第2の移動部を移動させ、
前記回転位置取得手段は、前記第1の回転範囲と前記第2の回転範囲内の前記第1の回転範囲側の部分では前記第1の信号を用いて前記回転位置を取得し、前記第3の回転範囲と前記第2の回転範囲内の前記第3の回転範囲側の部分では前記第2の信号を用いて前記回転位置を取得することを特徴とする位置検出装置。 - 前記第2のカムは、前記第1の回転範囲において前記第2の移動部を移動させないことを特徴とする請求項1に記載の位置検出装置。
- 前記第1のカムは、前記第3の回転範囲において前記第1の移動部を移動させないことを特徴とする請求項1または2に記載の位置検出装置。
- 前記第1のカムは、前記第3の回転範囲において、前記第1の移動部を前記第1および第2の回転範囲での前記第1の移動部の移動方向とは逆方向に移動させることを特徴とする請求項1または2に記載の位置検出装置。
- 前記回転部材の回転方向において、前記第1のカムと前記第2のカムのそれぞれの少なくとも一部が前記回転部材における同一の領域に形成されていることを特徴とする請求項1から4のいずれか一項に記載の位置検出装置。
- 前記第1および第2の移動部の移動方向において、前記第1のカムと前記第2のカムのそれぞれの少なくとも一部が前記回転部材における同一の領域に形成されていることを特徴とする請求項1から5のいずれか一項に記載の位置検出装置。
- 前記第1のカムは前記第3の回転範囲において前記第1の移動部を移動させない第1のゼロリフトカム部を有し、前記第2のカムは前記第1の回転範囲において前記第2の移動部を移動させない第2のゼロリフトカム部を有し、
前記回転部材の成型に用いられる金型の分割線が、前記第1のゼロリフトカム部と前記第2のゼロリフトカム部を通るように設定されたことを特徴とする請求項1から3のいずれか一項に記載の位置検出装置。 - 前記第1の検出手段は前記第1の信号を出力する第1の出力部を有し、前記第2の検出手段は前記第2の信号を出力する第2の出力部を有し、
前記第1の出力部と前記第2の出力部は、前記第1および第2の移動部の移動方向における互いに反対側に配置されていることを特徴とする請求項1から7のいずれか一項に記載の位置検出装置。 - 前記第1の検出手段と前記第2の検出手段は互いに同一の構成を有することを特徴とする請求項1から8のいずれか一項に記載の位置検出装置。
- 前記回転部材の回転方向において、前記第1の検出手段と前記第2の検出手段が互いに隣接するように配置されていることを特徴とする請求項1から9のいずれか一項に記載の位置検出装置。
- 請求項1から10のいずれか一項に記載の位置検出装置と、
前記回転部材の回転とともに光軸方向に移動する光学素子とを有することを特徴とする光学機器。
Priority Applications (3)
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JP2019114485A JP7289733B2 (ja) | 2019-06-20 | 2019-06-20 | 位置検出装置 |
CN202010547510.6A CN112113586B (zh) | 2019-06-20 | 2020-06-16 | 位置检测设备和光学设备 |
US16/905,748 US11399128B2 (en) | 2019-06-20 | 2020-06-18 | Position detecting apparatus for acquiring a rotational position of a rotating member |
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JP2019114485A JP7289733B2 (ja) | 2019-06-20 | 2019-06-20 | 位置検出装置 |
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JP2021001932A5 JP2021001932A5 (ja) | 2022-06-17 |
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JP7309482B2 (ja) * | 2019-07-03 | 2023-07-18 | キヤノン株式会社 | レンズ装置および撮像装置 |
Citations (6)
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---|---|---|---|---|
JPH11287941A (ja) * | 1998-01-30 | 1999-10-19 | Fuji Photo Optical Co Ltd | 光学装置の光学部材の駆動方法および駆動装置 |
JP2006258586A (ja) * | 2005-03-16 | 2006-09-28 | Canon Inc | 位置検出装置および光学機器 |
JP2013044569A (ja) * | 2011-08-22 | 2013-03-04 | Sony Corp | 位置検出装置、位置検出方法及び撮像装置 |
JP2013076832A (ja) * | 2011-09-30 | 2013-04-25 | Tamron Co Ltd | レンズ鏡筒及びそのレンズ鏡筒を備えた撮影装置 |
EP2793076A1 (en) * | 2013-04-16 | 2014-10-22 | Samsung Electronics Co., Ltd | Digital photographing apparatus and method of controlling the same |
CN104735346A (zh) * | 2013-12-24 | 2015-06-24 | 三星电子株式会社 | 成像装置 |
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US6196332B1 (en) * | 1998-12-03 | 2001-03-06 | Ingersoll-Rand Company | Rotational energy storage device and tools incorporating same |
JP4279702B2 (ja) * | 2003-04-24 | 2009-06-17 | アスモ株式会社 | 回動駆動装置 |
US9605603B2 (en) * | 2013-04-05 | 2017-03-28 | Ford Global Technologies, Llc | Position detection for lobe switching camshaft system |
MY189064A (en) * | 2013-11-14 | 2022-01-24 | Canon Kk | Shutter device and image pickup apparatus including shutter device |
US10113888B2 (en) * | 2015-03-03 | 2018-10-30 | Canon Kabushiki Kaisha | Position detection apparatus, apparatus including the same and position detection method |
WO2017134938A1 (ja) * | 2016-02-02 | 2017-08-10 | ソニー株式会社 | 光学素子駆動装置、交換レンズ及び撮像装置 |
JP6976837B2 (ja) * | 2017-12-19 | 2021-12-08 | キヤノン株式会社 | 撮像装置およびこの撮像装置を有する監視カメラ |
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- 2019-06-20 JP JP2019114485A patent/JP7289733B2/ja active Active
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- 2020-06-16 CN CN202010547510.6A patent/CN112113586B/zh active Active
- 2020-06-18 US US16/905,748 patent/US11399128B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11287941A (ja) * | 1998-01-30 | 1999-10-19 | Fuji Photo Optical Co Ltd | 光学装置の光学部材の駆動方法および駆動装置 |
JP2006258586A (ja) * | 2005-03-16 | 2006-09-28 | Canon Inc | 位置検出装置および光学機器 |
JP2013044569A (ja) * | 2011-08-22 | 2013-03-04 | Sony Corp | 位置検出装置、位置検出方法及び撮像装置 |
JP2013076832A (ja) * | 2011-09-30 | 2013-04-25 | Tamron Co Ltd | レンズ鏡筒及びそのレンズ鏡筒を備えた撮影装置 |
EP2793076A1 (en) * | 2013-04-16 | 2014-10-22 | Samsung Electronics Co., Ltd | Digital photographing apparatus and method of controlling the same |
CN104735346A (zh) * | 2013-12-24 | 2015-06-24 | 三星电子株式会社 | 成像装置 |
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Publication number | Publication date |
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CN112113586A (zh) | 2020-12-22 |
US11399128B2 (en) | 2022-07-26 |
US20200404155A1 (en) | 2020-12-24 |
JP7289733B2 (ja) | 2023-06-12 |
CN112113586B (zh) | 2023-04-07 |
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