JP6341674B2 - 圧電材料、圧電素子、積層圧電素子、液体吐出ヘッド、液体吐出装置、超音波モータ、光学機器、振動装置、塵埃除去装置、撮像装置、および電子機器 - Google Patents
圧電材料、圧電素子、積層圧電素子、液体吐出ヘッド、液体吐出装置、超音波モータ、光学機器、振動装置、塵埃除去装置、撮像装置、および電子機器 Download PDFInfo
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- JP6341674B2 JP6341674B2 JP2014013647A JP2014013647A JP6341674B2 JP 6341674 B2 JP6341674 B2 JP 6341674B2 JP 2014013647 A JP2014013647 A JP 2014013647A JP 2014013647 A JP2014013647 A JP 2014013647A JP 6341674 B2 JP6341674 B2 JP 6341674B2
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- piezoelectric
- piezoelectric element
- piezoelectric material
- electrode
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
- B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/495—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
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- G—PHYSICS
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- G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
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- H—ELECTRICITY
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Description
(NaxBa1−y)(NbyTi1−y)O3 (1)
(式中、xは0.80≦x≦0.95、yは0.85≦y≦0.95を示す。)
で表わされるペロブスカイト型金属酸化物と、SiおよびBから選ばれる少なくとも1種からなる副成分とを含有する圧電材料であって、前記副成分の含有量が前記ペロブスカイト型金属酸化物100重量部に対して金属換算で0.001重量部以上4.000重量部以下であることを特徴とする。
本発明に係る積層圧電素子は、複数の圧電材料層と、内部電極を含む複数の電極層とが交互に積層された積層圧電素子であって、前記圧電材料が上記の圧電材料であることを特徴とする。
(NaxBa1−y)(NbyTi1−y)O3 (1)
(式中、xは0.80≦x≦0.95、yは0.85≦y≦0.95を示す。)
で表わされるペロブスカイト型金属酸化物と、SiおよびBから選ばれる少なくとも1種からなる副成分とを含有する圧電材料であって、前記副成分の含有量が前記ペロブスカイト型金属酸化物100重量部に対して金属換算で0.001重量部以上4.000重量部以下であることを特徴とする。
以下に本発明の圧電材料を用いた圧電素子について説明する。
次に、本発明の圧電材料を用いた積層圧電素子について説明する。
本発明に係る液体吐出ヘッドは、前記圧電素子または前記積層圧電素子を配した振動部を備えた液室と、前記液室と連通する吐出口を少なくとも有することを特徴とする。本発明の液体吐出ヘッドによって吐出する液体は流動体であれば特に限定されず、水、インク、燃料などの水系液体や非水系液体を吐出することができる。
次に、本発明の液体吐出装置について説明する。本発明の液体吐出装置は、被転写体の載置部と前記液体吐出ヘッドを備えたものである。
本発明に係る超音波モータは、前記圧電素子または前記積層圧電素子を配した振動体と、前記振動体と接触する移動体とを少なくとも有することを特徴とする。
次に、本発明の光学機器について説明する。本発明の光学機器は、駆動部に前記超音波モータを備えたことを特徴とする。
粒子、粉体、液滴の搬送、除去等で利用される振動装置は、電子機器等で広く使用されている。
次に、本発明の撮像装置について説明する。本発明の撮像装置は、前記塵埃除去装置と撮像素子ユニットとを少なくとも有する撮像装置であって、前記塵埃除去装置の振動板を前記撮像ユニットの受光面側に設け、かつ前記塵埃除去装置を前記撮像素子ユニットの受講面側に設けたことを特徴とする。図12および図13は本発明の撮像装置の好適な実施形態の一例であるデジタル一眼レフカメラを示す図である。
次に、本発明の電子機器について説明する。本発明の電子機器は、前記圧電素子または前記積層圧電素子を備えた圧電音響部品を配したことを特徴とする。圧電音響部品にはスピーカ、ブザー、マイク、表面弾性波(SAW)素子が含まれる。
表1には、本発明の実施例1から24の圧電材料と比較例1から10の焼結体の組成を示す。
実施例23の原料には、純度99%以上のニオブ酸ナトリウム(NaNbO3)、純度99.95%の炭酸バリウム(BaCO3)、純度99%以上のチタン酸バリウム(BaTiO3)、純度99.99%以上の酸化亜鉛(ZnO(II))の粉末を用いた。
実施例24の原料には、実施例23に用いた原料に加えて、純度99.9%以上の四酸化三マンガン(Mn3O4)の粉末を用いた。
実施例1から19は、NN−BTを基本組成として、SiおよびBを添加した組成の試料である。表2に示す様に、SiおよびBが添加していない比較例1と比較すると、圧電定数d31、機械的品質係数Qmが増加した。一方、キュリー温度Tcはほとんど変化が無かった。
NN−BTを基本組成として、副成分としてSiおよびBを合計で0.02重量部含み、第2副成分としてCuを0.002もしくは0.005モル含まれている場合(実施例20、21)、第2副成分が無いものに比較して、圧電定数d31で10%程高く、機械的品質係数Qmは100から200程大きくなった。また、キュリー温度Tcは数℃減少であった。
実施例2に相当する原料を以下に述べる要領で秤量した。
実施例2に相当する原料を以下に述べる要領で秤量した。
実施例2の圧電素子を用いて、図3に示される液体吐出ヘッドを作製した。入力した電気信号に追随したインクの吐出が確認された。
実施例27の液体吐出ヘッドを用いて、図4に示される液体吐出装置を作製した。入力した電気信号に追随したインクの吐出、付着が記録媒体上に確認された。
実施例2の圧電素子を用いて、図6(a)に示される超音波モータを作製した。交番電圧の印加に応じたモータの回転が確認された。
実施例29の超音波モータを用いて、図7に示される光学機器を作製した。交番電圧の印加に応じたオートフォーカス動作が確認された。
実施例12の圧電素子を用いて、図9に示される塵埃除去装置を作製した。プラスチック製ビーズを散布し、交番電圧を印加したところ、良好な塵埃除去率を示すことが確認された。
実施例31の塵埃除去装置を用いて、図12に示される撮像装置を作製した。動作させたところ、撮像ユニットの表面の塵を良好に除去し、塵欠陥の無い画像が得られた。
実施例25から26の積層圧電素子を用いて、図3に示される液体吐出ヘッドを作製した。入力した電気信号に追随したインクの吐出が確認された。
実施例33の液体吐出ヘッドを用いて、図4に示される液体吐出装置を作製した。入力した電気信号に追随したインクの吐出、付着が記録媒体上に確認された。
実施例25から26の積層圧電素子を用いて、図6(b)に示される超音波モータを作製した。交番電圧の印加に応じたモータの回転が確認された。
実施例35の超音波モータを用いて、図7に示される光学機器を作製した。交番電圧の印加に応じたオートフォーカス動作が確認された。
実施例25から26の積層圧電素子を用いて、図9に示される塵埃除去装置を作製した。プラスチック製ビーズを散布し、交番電圧を印加したところ、良好な塵埃除去率を示すことが確認された。
実施例37の塵埃除去装置を用いて、図12に示される撮像装置を作製した。動作させたところ、撮像ユニットの表面の塵を良好に除去し、塵欠陥の無い画像が得られた。
実施例25から26の積層圧電素子を用いて、図14に示される電子機器を作製した。交番電圧の印加に応じたスピーカ動作が確認された。
2 圧電材料部
3 第二の電極
101 圧電素子
102 個別液室
103 振動板
104 液室隔壁
105 吐出口
106 連通孔
107 共通液室
108 バッファ層
1011 第一の電極
1012 圧電材料
1013 第二の電極
201 振動子
202 ロータ
203 出力軸
204 振動子
205 ロータ
206 バネ
2011 弾性体リング
2012 圧電素子
2013 有機系接着剤
2041 金属弾性体
2042 積層圧電素子
310 塵埃除去装置
330 圧電素子
320 振動板
330 圧電素子
331 圧電材料
332 第1の電極
333 第2の電極
336 第1の電極面
337 第2の電極面
310 塵埃除去装置
320 振動板
330 圧電素子
51 第一の電極
53 第二の電極
54 圧電材料層
55 内部電極
56 積層体
501 第一の電極
503 第二の電極
504 圧電材料層
505a 内部電極
505b 内部電極
506a 外部電極
506b 外部電極
601 カメラ本体
602 マウント部
605 ミラーボックス
606 メインミラー
200 シャッタユニット
300 本体シャーシ
400 撮像ユニット
702 後群レンズ(フォーカスレンズ)
711 着脱マウント
712 固定筒
713 直進案内筒
714 前群鏡筒
715 カム環
716 後群鏡筒
717 カムローラ
718 軸ビス
719 ローラ
720 回転伝達環
722 コロ
724 マニュアルフォーカス環
725 超音波モータ
726 波ワッシャ
727 ボールレース
728 フォーカスキー
729 接合部材
732 ワッシャ
733 低摩擦シート
881 液体吐出装置
882 外装
883 外装
884 外装
885 外装
887 外装
890 回復部
891 記録部
892 キャリッジ
896 装置本体
897 自動給送部
898 排出口
899 搬送部
901 光学装置
908 レリーズボタン
909 ストロボ発光部
912 スピーカ
914 マイク
916 補助光部
931 本体
932 ズームレバー
933 電源ボタン
Claims (16)
- 下記一般式(1)
(NaxBa1−y)(NbyTi1−y)O3 (1)
(式中、xは0.80≦x≦0.95、yは0.85≦y≦0.95を示す。)
で表わされるペロブスカイト型金属酸化物と、SiおよびBから選ばれる少なくとも1種からなる副成分とを含有する圧電材料であって、前記副成分の含有量が前記ペロブスカイト型金属酸化物100重量部に対して金属換算で0.001重量部以上4.000重量部以下であることを特徴とする圧電材料。 - 前記圧電材料は、前記一般式(1)で表わされるペロブスカイト型金属酸化物と、前記副成分と、Mn、Cu、Zn、Niから選ばれる少なくとも1種からなる第2副成分とを含有し、第2副成分の含有量が前記ペロブスカイト型金属酸化物1モルに対して0.05モル以下であることを特徴とする請求項1に記載の圧電材料。
- 前記一般式(1)において、x<yであることを特徴とする請求項1または2に記載の圧電材料。
- 第一の電極、圧電材料および第二の電極を有する圧電素子であって、前記圧電材料が請求項1乃至3のいずれか一項に記載の圧電材料であることを特徴とする圧電素子。
- 圧電材料層と、電極層と、が交互に積層された積層圧電素子であって、前記圧電材料が請求項1乃至3のいずれか一項に記載の圧電材料よりなることを特徴とする積層圧電素子。
- 前記電極層がAgとPdを含み、前記Agの含有重量M1と前記Pdの含有重量M2との重量比M1/M2が1.5≦M1/M2≦9.0であることを特徴とする請求項5に記載の積層圧電素子。
- 前記電極層がNiおよびCuの少なくとも1種を含むことを特徴とする請求項5に記載の積層圧電素子。
- 請求項4に記載の圧電素子または請求項5乃至7のいずれか一項に記載の積層圧電素子を配した振動部を備えた液室と、前記液室と連通する吐出口を有することを特徴とする液体吐出ヘッド。
- 記録媒体の搬送部と請求項8に記載の液体吐出ヘッドを備えたことを特徴とする液体吐出装置。
- 請求項4に記載の圧電素子または請求項5乃至7のいずれか一項に記載の積層圧電素子を配した振動体と、前記振動体と接触する移動体とを有することを特徴とする超音波モータ。
- 駆動部に請求項10に記載の超音波モータを備えたことを特徴とする光学機器。
- 請求項4に記載の圧電素子または請求項5乃至7のいずれか一項に記載の積層圧電素子を振動板に配した振動体を有することを特徴とする振動装置。
- 請求項12に記載の振動装置を振動部に備えたことを特徴とする塵埃除去装置。
- 請求項13に記載の塵埃除去装置と撮像素子ユニットとを有する撮像装置であって、前記塵埃除去装置の振動板を前記撮像素子ユニットの受光面側に設けたことを特徴とする撮像装置。
- 請求項4に記載の圧電素子または請求項5乃至7のいずれか一項に記載の積層圧電素子を備えた圧電音響部品。
- 請求項4に記載の圧電素子または請求項5乃至7のいずれか一項に記載の積層圧電素子を備えた電子機器。
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EP2953177B1 (en) * | 2014-05-30 | 2017-01-25 | Canon Kabushiki Kaisha | Piezoelectric material, piezoelectric element, and electronic device |
US10074796B2 (en) * | 2015-04-03 | 2018-09-11 | Canon Kabushiki Kaisha | Piezoelectric material, piezoelectric element, and electronic apparatus |
EP3268996B1 (en) * | 2015-04-03 | 2019-12-11 | C/o Canon Kabushiki Kaisha | Piezoelectric material, method of producing piezoelectric material, piezoelectric element, and electronic apparatus |
US10536097B2 (en) * | 2015-11-27 | 2020-01-14 | Canon Kabushiki Kaisha | Ultrasonic motor, drive control system, optical apparatus, and vibrator |
US10516091B2 (en) * | 2015-11-27 | 2019-12-24 | Canon Kabushiki Kaisha | Ultrasonic motor, drive control system, optical apparatus, and vibrator |
US10775681B2 (en) * | 2015-11-27 | 2020-09-15 | Canon Kabushiki Kaisha | Ultrasonic motor, drive control system, optical apparatus, and vibrator |
US10451833B2 (en) * | 2015-11-27 | 2019-10-22 | Canon Kabushiki Kaisha | Ultrasonic motor, drive control system, optical apparatus, and vibrator |
JP7156632B2 (ja) * | 2017-08-04 | 2022-10-19 | キヤノン株式会社 | 圧電材料、圧電素子、および電子機器 |
TWI657869B (zh) * | 2018-03-21 | 2019-05-01 | 賴振維 | 超音波加工裝置及其振動單元 |
JP7166866B2 (ja) * | 2018-10-03 | 2022-11-08 | キヤノン株式会社 | 配向性圧電体膜およびその製造方法、圧電体素子、並びに、液体吐出ヘッド |
JP7222647B2 (ja) | 2018-10-03 | 2023-02-15 | キヤノン株式会社 | 圧電体膜形成用塗工液組成物、その製造方法、配向性圧電体膜、並びに、液体吐出ヘッド |
CN109437889A (zh) * | 2018-11-23 | 2019-03-08 | 杭州电子科技大学 | 一种Ti位Cu/Ta共掺杂钛酸铋高温压电陶瓷材料的制备方法 |
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JP4510140B2 (ja) * | 2003-01-23 | 2010-07-21 | 株式会社デンソー | 圧電磁器組成物,圧電素子及び誘電素子 |
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TW201245098A (en) | 2007-09-28 | 2012-11-16 | Tdk Corp | Dielectric ceramic composition and electronic device |
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JP5217997B2 (ja) * | 2008-10-20 | 2013-06-19 | Tdk株式会社 | 圧電磁器、振動子及び超音波モータ |
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JP6021351B2 (ja) | 2011-02-28 | 2016-11-09 | キヤノン株式会社 | 圧電材料、圧電素子、液体吐出ヘッド、超音波モータ、塵埃除去装置およびデバイス |
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JP5562382B2 (ja) * | 2012-07-10 | 2014-07-30 | 京セラ株式会社 | 積層型圧電素子、これを備えた噴射装置及び燃料噴射システム |
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