JP4347142B2 - セクタ駆動装置 - Google Patents
セクタ駆動装置 Download PDFInfo
- Publication number
- JP4347142B2 JP4347142B2 JP2004172629A JP2004172629A JP4347142B2 JP 4347142 B2 JP4347142 B2 JP 4347142B2 JP 2004172629 A JP2004172629 A JP 2004172629A JP 2004172629 A JP2004172629 A JP 2004172629A JP 4347142 B2 JP4347142 B2 JP 4347142B2
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- JP
- Japan
- Prior art keywords
- sector
- shielding
- shutter opening
- opening
- light amount
- 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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- Diaphragms For Cameras (AREA)
- Shutters For Cameras (AREA)
Description
2 セクタ押え板
3 シャッタ開口
4 シャッタ基板
5、6、7 支軸
8 モータ
9 作動ピン
10 入射光量調整用セクタ
13 開口部
14 NDフィルタ
20 第1の遮蔽用セクタセクタ
30 第2の遮蔽用セクタセクタ
TR 入射光量調整用セクタの軌跡
Claims (2)
- シャッタ開口を開閉する遮蔽用セクタと、前記シャッタ開口を塞ぐ位置にきたときに該シャッタ開口への入射光量を調整する入射光量調整用セクタとを備え、
前記入射光量調整用セクタには前記シャッタ開口よりも大きな開口部が形成されており、該開口部には減光フィルタが取付けられており、
前記遮蔽用セクタが前記シャッタ開口を閉じる位置と該シャッタ開口から退避した位置との間を揺動する第1の遮蔽用セクタ及び第2の遮蔽用セクタを含み、該第1の遮蔽用セクタと第2の遮蔽用セクタを平面視した場合に該第1の遮蔽用セクタと第2の遮蔽用セクタとが前記シャッタ開口を間にして両側に配置されており、
前記第1の遮蔽用セクタ、前記第2の遮蔽用セクタ及び前記入射光量調整用セクタのそれぞれが、支軸を中心にして揺動自在に配置されると共に作動ピンが係合するカム穴を有し、
前記作動ピンの動作に連動して前記3枚のセクタそれぞれが所定軌跡で揺動して、全開、全閉及び光量調整の状態を形成することを特徴とすることを特徴とするセクタ駆動装置。 - 前記開口部は、前記入射光量調整用セクタが移動する軌跡に沿って延伸させた長穴形状であることを特徴とする請求項1に記載のセクタ駆動装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004172629A JP4347142B2 (ja) | 2004-06-10 | 2004-06-10 | セクタ駆動装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004172629A JP4347142B2 (ja) | 2004-06-10 | 2004-06-10 | セクタ駆動装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005352153A JP2005352153A (ja) | 2005-12-22 |
JP4347142B2 true JP4347142B2 (ja) | 2009-10-21 |
Family
ID=35586691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004172629A Expired - Fee Related JP4347142B2 (ja) | 2004-06-10 | 2004-06-10 | セクタ駆動装置 |
Country Status (1)
Country | Link |
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JP (1) | JP4347142B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5224885B2 (ja) * | 2008-04-11 | 2013-07-03 | セイコープレシジョン株式会社 | 羽根駆動装置 |
-
2004
- 2004-06-10 JP JP2004172629A patent/JP4347142B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2005352153A (ja) | 2005-12-22 |
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