JP5735991B2 - Sma作動装置 - Google Patents
Sma作動装置 Download PDFInfo
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- JP5735991B2 JP5735991B2 JP2012554410A JP2012554410A JP5735991B2 JP 5735991 B2 JP5735991 B2 JP 5735991B2 JP 2012554410 A JP2012554410 A JP 2012554410A JP 2012554410 A JP2012554410 A JP 2012554410A JP 5735991 B2 JP5735991 B2 JP 5735991B2
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- sma actuator
- sma
- camera
- movable element
- actuator wires
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- 229910001285 shape-memory alloy Inorganic materials 0.000 description 232
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Classifications
-
- 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
-
- 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
- G03B5/04—Vertical adjustment of lens; Rising fronts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
- F03G7/061—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element
- F03G7/0614—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element using shape memory elements
- F03G7/06143—Wires
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
- F03G7/065—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like using a shape memory element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
- F03G7/066—Actuator control or monitoring
- F03G7/0665—Actuator control or monitoring controlled displacement, e.g. by using a lens positioning actuator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
- F03G7/067—Safety arrangements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
-
- 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
- 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
-
- 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
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- 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
-
- 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
-
- 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
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
- H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/003—Alignment of optical elements
- G02B7/005—Motorised alignment
-
- 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
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
- G03B2205/0023—Movement of one or more optical elements for control of motion blur by tilting or inclining one or more optical elements with respect to the optical axis
-
- 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
- G03B2205/0076—Driving means for the movement of one or more optical element using shape memory alloys
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Adjustment Of Camera Lenses (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Description
支持構造体と、
支持構造体に対して運動することが可能なように支持構造体上に支持されている可動要素と、
仮想的な主軸に対して傾き、主軸周りの4つの側面上それぞれに1対のSMAアクチュエータワイヤが存在する8本のSMAアクチュエータワイヤであって、4本のSMAアクチュエータワイヤの2つのグループが収縮すると、主軸に沿って対向する方向の成分を有する力を可動要素に及ぼすように、SMAアクチュエータが、可動要素と支持構造体との間に連結され、各グループのSMAアクチュエータワイヤが、主軸周りに2回回転対称に配置されている、8本のSMAアクチュエータワイヤと
を備えるSMA作動装置が提供される。
2 SMAアクチュエータワイヤ
3 SMAアクチュエータワイヤ
4 SMAアクチュエータワイヤ
5 SMAアクチュエータワイヤ
6 SMAアクチュエータワイヤ
7 SMAアクチュエータワイヤ
8 SMAアクチュエータワイヤ
10 SMA作動装置
11 可動要素
12 支持構造体
13 枢動部材
20 制御回路
21 運動信号
22 マトリックスコントローラ
23 駆動回路
24 駆動コントローラ
25 ドライバ
26 検出回路
27 ジャイロスコープセンサ
28 OISコントローラ
30 画像センサ
31 カメラレンズ要素
32 プリント回路基板(PCB)
33 筐体
34 ICチップ
40 画像センサ
41 カメラレンズ要素
42 ICチップ
50 クリンピング部材
51 相互接続部
53 第1のサブアセンブリ
54 第2のサブアセンブリ
O 光軸
P 主軸
Claims (18)
- 支持構造体と、
前記支持構造体に対して運動することが可能なように前記支持構造体上に支持されている可動要素であって、前記可動要素は、直径が最大10mmである1つまたは複数のレンズを有するカメラレンズ要素を備える、可動要素と、
仮想的な主軸に対して傾き、前記主軸周りの4つの側面上それぞれに2本ずつのSMAアクチュエータワイヤを備える8本のSMAアクチュエータワイヤであって、4本のSMAアクチュエータワイヤの2つのグループが収縮すると、前記主軸に沿って対向する方向の成分を有する力を前記可動要素に及ぼすように、前記SMAアクチュエータが、前記可動要素と前記支持構造体との間に連結され、各グループの前記SMAアクチュエータワイヤが、前記主軸周りに2回回転対称に配置されている、8本のSMAアクチュエータワイヤと
を備えるSMA作動装置。 - 前記可動要素が、画像センサと、前記画像センサ上に画像を合焦するように配置されたカメラレンズ要素とを備えるカメラユニットであり、前記主軸が、前記カメラレンズ要素の光軸である、請求項1に記載の装置。
- 前記SMA作動装置が、前記支持構造体に固定された画像センサをさらに備えるカメラ装置であり、前記可動要素が、前記画像センサ上に画像を合焦するように配置されたカメラレンズ要素を備え、前記主軸が、前記カメラレンズ要素の光軸である、請求項1に記載の装置。
- 前記8本のSMAアクチュエータワイヤが、独立した駆動信号を前記SMAアクチュエータワイヤのそれぞれが受け取ることができる電気的接続を有する、前記請求項のいずれか一項に記載の装置。
- 駆動信号を前記SMAアクチュエータワイヤに入力するために、前記SMAアクチュエータワイヤに電気的に接続された制御回路をさらに備える、前記請求項のいずれか一項に記載の装置。
- 前記制御回路が、前記SMAアクチュエータワイヤのそれぞれに独立した駆動信号を入力するように配置されている、請求項5に記載の装置。
- 前記装置の振動を表す出力信号を生成するように配置された振動センサをさらに備え、前記制御回路が、前記画像センサによって感知される前記画像を安定化させるために、振動センサの出力信号に応答して前記駆動信号を生成するように配置されている、請求項5または6に記載の装置。
- 前記制御回路が、前記画像センサによって感知される前記画像を安定化させるために、前記カメラユニットを傾斜させ、前記光軸に対して横向きに動かす駆動信号を生成するように配置されている、請求項2に従属するときの請求項7に記載の装置。
- 前記制御回路が、前記可動要素を、前記画像センサによって感知される前記画像を安定化させるために前記光軸に対して横向きに動かし、前記画像の焦点を変化させるために前記光軸に沿って動かす駆動信号を生成するように配置されている、請求項3に従属するときの請求項7に記載の装置。
- 4本のSMAアクチュエータワイヤの各グループが、対向する側面上に2対のSMAアクチュエータワイヤを備える、前記請求項のいずれか一項に記載の装置。
- 前記可動要素の各側面上に、前記可動要素に枢動的に連結された枢動部材をさらに備え、各側面上の前記2本のSMAアクチュエータワイヤが前記枢動部材に連結されている、請求項10に記載の装置。
- 4本のSMAアクチュエータワイヤの各グループが、各側面上に1本のSMAアクチュエータワイヤを備える、請求項1〜9のいずれか一項に記載の装置。
- 前記制御回路が、対向する側面上の互いに平行である前記SMAアクチュエータワイヤに共通の駆動信号を入力するように配置されている、請求項5に従属するときの請求項12に記載の装置。
- 各側面上で、2本の前記SMAアクチュエータワイヤが、互いに平行であるか、または互いに反対方向に傾きかつ交差する、前記請求項のいずれか一項に記載の装置。
- 各側面上に存在する2本の前記SMAアクチュエータワイヤが、前記主軸に垂直な同じ仮想横軸に対してそれぞれ垂直である、前記請求項のいずれか一項に記載の装置。
- 前記可動要素が、前記SMAアクチュエータワイヤのみによって前記支持構造体上に支持されている、前記請求項のいずれか一項に記載の装置。
- 独立に制御される複数のSMAワイヤを使用する、小型カメラ用の光学画像安定化装置であって、各ワイヤに印加される電力が制御され、各ワイヤの電気抵抗が、制御を可能にするために監視され、前記ワイヤがさらに、基礎励起によって前記カメラモジュールに加えられる傾斜を感知するために、協調して作用し、前記SMAワイヤシステム上に懸架されている前記カメラモジュールの実効共振周波数を低下させるように前記ワイヤを制御することによって、前記ワイヤが、ジャイロスコープセンサなしでOIS機能を達成するように制御される、光学画像安定化装置。
- 前記SMAワイヤが、前記基礎励起が加えられているとき、一定の力を前記カメラに実質的に及ぼすように制御される、請求項17に記載の光学画像安定化装置。
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1003277.9 | 2010-02-26 | ||
GBGB1003277.9A GB201003277D0 (en) | 2010-02-26 | 2010-02-26 | SMA Actuator |
GB1017026.4 | 2010-10-08 | ||
GBGB1017026.4A GB201017026D0 (en) | 2010-10-08 | 2010-10-08 | SMA Actuator |
GB1019126.0 | 2010-11-12 | ||
GBGB1019126.0A GB201019126D0 (en) | 2010-11-12 | 2010-11-12 | SMA actuator |
GB1019408.2 | 2010-11-17 | ||
GBGB1019408.2A GB201019408D0 (en) | 2010-11-17 | 2010-11-17 | Optical image stabilisation |
PCT/GB2011/000272 WO2011104518A1 (en) | 2010-02-26 | 2011-02-28 | Sma actuation apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013520701A JP2013520701A (ja) | 2013-06-06 |
JP5735991B2 true JP5735991B2 (ja) | 2015-06-17 |
Family
ID=43869829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012554410A Active JP5735991B2 (ja) | 2010-02-26 | 2011-02-28 | Sma作動装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8830335B2 (ja) |
EP (2) | EP2539766B1 (ja) |
JP (1) | JP5735991B2 (ja) |
KR (1) | KR101770856B1 (ja) |
CN (1) | CN102770804B (ja) |
WO (1) | WO2011104518A1 (ja) |
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JP2013520701A (ja) | 2013-06-06 |
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WO2011104518A1 (en) | 2011-09-01 |
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CN102770804B (zh) | 2015-09-23 |
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