JP4933483B2 - レンズ鏡胴の駆動装置 - Google Patents
レンズ鏡胴の駆動装置 Download PDFInfo
- Publication number
- JP4933483B2 JP4933483B2 JP2008126273A JP2008126273A JP4933483B2 JP 4933483 B2 JP4933483 B2 JP 4933483B2 JP 2008126273 A JP2008126273 A JP 2008126273A JP 2008126273 A JP2008126273 A JP 2008126273A JP 4933483 B2 JP4933483 B2 JP 4933483B2
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- Prior art keywords
- power transmission
- transmission member
- motor
- state
- ring
- 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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- 230000005540 biological transmission Effects 0.000 claims description 33
- 230000003287 optical effect Effects 0.000 description 6
- 230000007257 malfunction Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000007799 cork Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- 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
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
- G02B7/102—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens controlled by a microcomputer
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Description
Claims (1)
- レンズ鏡胴に回動可能に設けられた操作リングと、
前記操作リングを駆動するためのモータと、
固定軸に回動可能に支持された動力伝達部材であって、前記操作リング及び前記モータの両方に連結した状態であって前記モータの動力を前記操作リングに伝達可能にしたモータ駆動状態の位置と、前記操作リングのみに連結した状態であって前記モータの動力を前記操作リングに伝達不能にしたマニュアル駆動状態の位置とで移動可能に配置された動力伝達部材と、
前記動力伝達部材に形成された凹部に挿入配置された状態切替部材であって、前記凹部の側面に当接して前記動力伝達部材を移動させることによって、前記動力伝達部材を前記モータ駆動状態の位置又は前記マニュアル駆動状態の位置に移動させる状態切替部材と、
前記動力伝達部材が前記マニュアル駆動状態の位置に設定されている場合にのみ、前記動力伝達部材と前記状態切替部材との当接部において前記動力伝達部材の回動に対する抵抗力を付加する抵抗付加手段であって、前記動力伝達部材が前記マニュアル駆動状態の位置に設定されている場合における前記操作リングの回動に対して抵抗力を付加する抵抗付加手段と、
を備え、
前記抵抗付加手段は、前記動力伝達部材が前記マニュアル駆動状態の位置に設定されている場合に前記動力伝達部材を前記状態切替部材に押圧するバネであって、前記動力伝達部材が前記モータ駆動状態の位置に設定されている場合に、略自然長となり、前記動力伝達部材が前記マニュアル駆動状態の位置に設定されている場合に、自然長よりも伸長又は圧縮されるバネと、
前記動力伝達部材が前記マニュアル駆動状態の位置に設定されている場合に前記動力伝達部材と前記状態切替部材とが当接する当接部に前記動力伝達部材の回動に対して摩擦抵抗を発生させるために設けられた摩擦部材と、
を有することを特徴とするレンズ鏡胴の駆動装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008126273A JP4933483B2 (ja) | 2008-05-13 | 2008-05-13 | レンズ鏡胴の駆動装置 |
US12/434,968 US20090284855A1 (en) | 2008-05-13 | 2009-05-04 | Lens barrel driver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008126273A JP4933483B2 (ja) | 2008-05-13 | 2008-05-13 | レンズ鏡胴の駆動装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009276468A JP2009276468A (ja) | 2009-11-26 |
JP4933483B2 true JP4933483B2 (ja) | 2012-05-16 |
Family
ID=41315909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008126273A Active JP4933483B2 (ja) | 2008-05-13 | 2008-05-13 | レンズ鏡胴の駆動装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20090284855A1 (ja) |
JP (1) | JP4933483B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112384837A (zh) * | 2018-06-22 | 2021-02-19 | 索尼公司 | 可互换透镜、成像装置和转动检测装置 |
JP2021071668A (ja) * | 2019-11-01 | 2021-05-06 | 株式会社タムロン | レンズ鏡筒及びそれを備えたカメラ |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5933806B2 (ja) * | 1976-05-29 | 1984-08-18 | 株式会社東芝 | 筒形ガスバ−ナ |
JPS5929211A (ja) * | 1982-08-11 | 1984-02-16 | Canon Inc | レンズの自然移動防止装置 |
US4890132A (en) * | 1987-03-26 | 1989-12-26 | Asahi Kogaku Kogyo Kabushiki Kaisha | Manual control apparatus of zoom lens barrel for an auto focus camera |
JP3169398B2 (ja) * | 1991-05-21 | 2001-05-21 | 旭光学工業株式会社 | レンズ鏡筒の操作機構 |
JPH06130266A (ja) * | 1992-10-16 | 1994-05-13 | Canon Inc | レンズ駆動装置 |
US6025964A (en) * | 1997-05-16 | 2000-02-15 | Canon Kabushiki Kaisha | Optical apparatus |
US6456796B1 (en) * | 1999-03-02 | 2002-09-24 | Fuji Photo Optical Co., Ltd. | Manual and electric motor operated apparatus for lens barrels |
-
2008
- 2008-05-13 JP JP2008126273A patent/JP4933483B2/ja active Active
-
2009
- 2009-05-04 US US12/434,968 patent/US20090284855A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2009276468A (ja) | 2009-11-26 |
US20090284855A1 (en) | 2009-11-19 |
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