JPS6276327U - - Google Patents
Info
- Publication number
- JPS6276327U JPS6276327U JP1985168658U JP16865885U JPS6276327U JP S6276327 U JPS6276327 U JP S6276327U JP 1985168658 U JP1985168658 U JP 1985168658U JP 16865885 U JP16865885 U JP 16865885U JP S6276327 U JPS6276327 U JP S6276327U
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- pole teeth
- optical axis
- respect
- radial direction
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/08—Shutters
- G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
- G03B9/18—More than two members
- G03B9/22—More than two members each moving in one direction to open and then in opposite direction to close, e.g. iris type
-
- 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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/02—Diaphragms
- G03B9/06—Two or more co-operating pivoted blades, e.g. iris type
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Diaphragms For Cameras (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985168658U JPS644096Y2 (US06724976-20040420-M00002.png) | 1985-10-31 | 1985-10-31 | |
| US06/923,313 US4772904A (en) | 1985-10-31 | 1986-10-27 | Diaphragm drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985168658U JPS644096Y2 (US06724976-20040420-M00002.png) | 1985-10-31 | 1985-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6276327U true JPS6276327U (US06724976-20040420-M00002.png) | 1987-05-15 |
| JPS644096Y2 JPS644096Y2 (US06724976-20040420-M00002.png) | 1989-02-02 |
Family
ID=15872101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985168658U Expired JPS644096Y2 (US06724976-20040420-M00002.png) | 1985-10-31 | 1985-10-31 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4772904A (US06724976-20040420-M00002.png) |
| JP (1) | JPS644096Y2 (US06724976-20040420-M00002.png) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005274593A (ja) * | 2004-03-22 | 2005-10-06 | Nidec Copal Corp | 光量調整装置 |
| JP2006222131A (ja) * | 2005-02-08 | 2006-08-24 | Neomax Co Ltd | 永久磁石体 |
| JP2012226131A (ja) * | 2011-04-20 | 2012-11-15 | Canon Inc | 光量調整装置 |
| JP2016133120A (ja) * | 2015-01-15 | 2016-07-25 | エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー | 排ガス案内系用の支持リング |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2272532B (en) * | 1992-11-10 | 1995-11-15 | Samsung Aerospace Ind | Electromagnetic shutter apparatus |
| US6139202A (en) * | 1998-12-08 | 2000-10-31 | Eastman Kodak Company | Aperture/shutter system with a motor component |
| JP3684184B2 (ja) * | 2001-09-28 | 2005-08-17 | キヤノン株式会社 | 駆動装置及び光量調節手段を有する光学機器 |
| JP4164378B2 (ja) * | 2003-02-03 | 2008-10-15 | キヤノン株式会社 | 光量調節装置 |
| JP4012170B2 (ja) * | 2004-01-06 | 2007-11-21 | キヤノン株式会社 | アクチュエータ及び光量調節装置 |
| US7513702B2 (en) * | 2005-11-16 | 2009-04-07 | Va, Inc. | Non-contact shutter activation system and method |
| US7883280B2 (en) * | 2008-03-12 | 2011-02-08 | Va, Inc. | Shutter activation system |
| CH699399B1 (fr) * | 2008-08-22 | 2014-02-28 | Faulhaber Precistep Sa | Moteur électrique en forme de bague. |
| US8128296B2 (en) | 2009-01-26 | 2012-03-06 | Va, Inc. | Shutter assembly |
| US8313255B2 (en) * | 2009-01-26 | 2012-11-20 | Va, Inc. | Shutter assembly with drive ring-mounted magnet |
| US8333521B2 (en) | 2010-04-01 | 2012-12-18 | Va, Inc. | Shutter assembly with rotating magnet |
| US9134588B2 (en) * | 2013-08-08 | 2015-09-15 | Canon Kabushiki Kaisha | Stop apparatus, and lens apparatus and image pickup apparatus having the same |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100558A (en) * | 1972-09-14 | 1978-07-11 | Hiroshi Koike | Automatic-exposure control device for optical instruments |
| JPS5345632A (en) * | 1976-10-05 | 1978-04-24 | Nat Semiconductor Corp | Process and apparatus for applying stripeelike plating to strips |
| JPS5345631A (en) * | 1976-10-07 | 1978-04-24 | Tokyo Shibaura Electric Co | Method of automatically controlling concentration of nonnelectrolytic plating solution |
| US4113359A (en) * | 1977-03-16 | 1978-09-12 | Hiroshi Koike | Automatic diaphragm assembly |
| DE2942636C2 (de) * | 1978-10-23 | 1984-12-13 | Canon K.K., Tokio/Tokyo | Elektromagnetisch betätigter Zentralverschluß |
| JPS5642219A (en) * | 1979-09-17 | 1981-04-20 | Canon Inc | Electromagnetic drive diaphragm device |
| JPS5672424A (en) * | 1979-11-20 | 1981-06-16 | Canon Inc | Electromagnetic-drive shutter using auxiliary spring |
| US4534624A (en) * | 1981-07-14 | 1985-08-13 | Canon Kabushiki Kaisha | Construction of lens barrel operated by electromagnetic induction |
| JPS5810706A (ja) * | 1981-07-14 | 1983-01-21 | Canon Inc | レンズ鏡筒 |
| JPS5816208A (ja) * | 1981-07-22 | 1983-01-29 | Canon Inc | 電磁誘導機構を組み込んだレンズ鏡胴 |
| JPS5817428A (ja) * | 1981-07-23 | 1983-02-01 | West Electric Co Ltd | 撮影レンズ装置 |
| JPS5964974A (ja) * | 1982-10-06 | 1984-04-13 | Canon Inc | 撮像装置 |
| DE3346552A1 (de) * | 1982-12-23 | 1984-06-28 | Konishiroku Photo Industry Co., Ltd., Tokio/Tokyo | Kamera |
| DE3346769A1 (de) * | 1982-12-23 | 1984-06-28 | Konishiroku Photo Industry Co., Ltd., Tokio/Tokyo | Elektromagnetisch angetriebener verschluss |
-
1985
- 1985-10-31 JP JP1985168658U patent/JPS644096Y2/ja not_active Expired
-
1986
- 1986-10-27 US US06/923,313 patent/US4772904A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005274593A (ja) * | 2004-03-22 | 2005-10-06 | Nidec Copal Corp | 光量調整装置 |
| JP2006222131A (ja) * | 2005-02-08 | 2006-08-24 | Neomax Co Ltd | 永久磁石体 |
| JP2012226131A (ja) * | 2011-04-20 | 2012-11-15 | Canon Inc | 光量調整装置 |
| JP2016133120A (ja) * | 2015-01-15 | 2016-07-25 | エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー | 排ガス案内系用の支持リング |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS644096Y2 (US06724976-20040420-M00002.png) | 1989-02-02 |
| US4772904A (en) | 1988-09-20 |
