JP5560481B2 - リニア駆動装置 - Google Patents
リニア駆動装置 Download PDFInfo
- Publication number
- JP5560481B2 JP5560481B2 JP2009277187A JP2009277187A JP5560481B2 JP 5560481 B2 JP5560481 B2 JP 5560481B2 JP 2009277187 A JP2009277187 A JP 2009277187A JP 2009277187 A JP2009277187 A JP 2009277187A JP 5560481 B2 JP5560481 B2 JP 5560481B2
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- Prior art keywords
- drive shaft
- fixed
- vibration member
- vibration
- base end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003287 optical effect Effects 0.000 claims description 13
- 230000005489 elastic deformation Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Landscapes
- Lens Barrels (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Description
5 フォーカスレンズホルダ(移動体)
7 ズームレンズホルダ駆動手段(リニア駆動装置)
9 フォーカスレンズホルダ駆動手段(リニア駆動装置)
17 振動部材
19 振動子
21 ズームレンズホルダの駆動軸(駆動軸)
22 フォーカスレンズホルダの駆動軸(駆動軸)
26 基端(固定面)
32 錘部材
Claims (4)
- 振動部材と、振動部材に基端を固定した駆動軸とを備え、振動部材の振動により駆動軸がその軸線方向に振動することにより、駆動軸に摩擦係合した移動体が駆動軸の軸線方向に沿って摺動するリニア駆動装置において、
振動部材は、通電により伸縮する圧電素子と、弾性を有する板状の振動子とを有し、振動子は圧電素子の一側面に板面を重ねて固定してあり、振動子は圧電素子の伸縮により駆動軸が固定してある中央部を周縁部に対して駆動軸側に突設と凹みの弾性変形動作を繰り返し、振動部材には駆動軸が固定してある側と反対側の面で且つ駆動軸の固定位置に対応する位置に錘部材が固定してあり、振動部材に固定した駆動軸の基端面の面積は振動部材の面積よりも小さく且つ錘部材を振動部材に固定した面の面積は駆動軸の基端面の面積以下としてあることを特徴とするリニア駆動装置。 - 駆動軸は振動部材に固定する基端側を細くして振動部材に固定する基端面の面積を小さくしてあることを特徴とする請求項1に記載のリニア駆動装置。
- 錘部材は駆動軸と略同じ質量としてあることを特徴とする請求項1に記載のリニア駆動装置。
- 移動体はレンズを保持するレンズ支持体であり、振動部材の振動によりレンズ支持体をレンズの光軸方向に移動することを特徴とする請求項1〜3のいずれか一項に記載のリニア駆動装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009277187A JP5560481B2 (ja) | 2009-12-07 | 2009-12-07 | リニア駆動装置 |
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---|---|---|---|
JP2009277187A JP5560481B2 (ja) | 2009-12-07 | 2009-12-07 | リニア駆動装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011120414A JP2011120414A (ja) | 2011-06-16 |
JP5560481B2 true JP5560481B2 (ja) | 2014-07-30 |
Family
ID=44285047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009277187A Active JP5560481B2 (ja) | 2009-12-07 | 2009-12-07 | リニア駆動装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5560481B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103973156B (zh) * | 2013-01-31 | 2016-04-27 | 新思考电机有限公司 | 直线驱动装置、照相装置及电子设备 |
JP6155460B2 (ja) * | 2013-06-06 | 2017-07-05 | 新シコー科技株式会社 | 駆動部材、リニア駆動装置、カメラ装置及び電子機器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007274816A (ja) * | 2006-03-31 | 2007-10-18 | Fujinon Corp | 駆動装置 |
JP2008253106A (ja) * | 2007-03-30 | 2008-10-16 | Fujinon Corp | 駆動装置 |
JP5544504B2 (ja) * | 2008-05-09 | 2014-07-09 | 新シコー科技株式会社 | リニア駆動装置、レンズ駆動装置、カメラ及びカメラ付き携帯電話 |
JP2009276422A (ja) * | 2008-05-13 | 2009-11-26 | Mitsumi Electric Co Ltd | 駆動装置 |
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2009
- 2009-12-07 JP JP2009277187A patent/JP5560481B2/ja active Active
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JP2011120414A (ja) | 2011-06-16 |
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