JP4606032B2 - 機械式絞り装置を具備するビデオカメラ - Google Patents
機械式絞り装置を具備するビデオカメラ Download PDFInfo
- Publication number
- JP4606032B2 JP4606032B2 JP2004023514A JP2004023514A JP4606032B2 JP 4606032 B2 JP4606032 B2 JP 4606032B2 JP 2004023514 A JP2004023514 A JP 2004023514A JP 2004023514 A JP2004023514 A JP 2004023514A JP 4606032 B2 JP4606032 B2 JP 4606032B2
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- Prior art keywords
- aperture
- value
- diaphragm
- signal
- output
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- Studio Devices (AREA)
- Diaphragms For Cameras (AREA)
- Shutters For Cameras (AREA)
Description
ステップS23におけるシャッター速度の補正は、次の式を用いて行われる。
以上で撮影処理が完了する。
16 撮像素子
18 タイミングジェネレータ
26 信号処理
36 輝度評価回路
40 ドライバ
42 CPU
402 ホール素子
410、412 絞り羽根
410a、412a 長穴
410b、412b ピン
Claims (1)
- 駆動手段を用いて絞り羽根を動かすことにより開口部の大きさを変化させる機械式絞り装置を具備するビデオカメラにおいて、前記駆動手段に供給する駆動信号の値を、前記開口部の大きさを目標の大きさとする目標値から一旦所定の側に大きさが異なる値に設定し、所定時間経過後に前記目標値に設定する絞り羽根制御手段を備え、
前記絞り羽根は弾性部材を用いて開口部が小さくなる方向に付勢されており、前記所定の側に大きさが異なる値とは目標値よりも大きな値であることを特徴とする機械式絞り装置を具備するビデオカメラ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004023514A JP4606032B2 (ja) | 2004-01-30 | 2004-01-30 | 機械式絞り装置を具備するビデオカメラ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004023514A JP4606032B2 (ja) | 2004-01-30 | 2004-01-30 | 機械式絞り装置を具備するビデオカメラ |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000236238A Division JP3557159B2 (ja) | 2000-08-03 | 2000-08-03 | 機械式絞り装置を具備するビデオカメラ |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2004139137A JP2004139137A (ja) | 2004-05-13 |
JP2004139137A5 JP2004139137A5 (ja) | 2007-08-30 |
JP4606032B2 true JP4606032B2 (ja) | 2011-01-05 |
Family
ID=32464214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004023514A Expired - Fee Related JP4606032B2 (ja) | 2004-01-30 | 2004-01-30 | 機械式絞り装置を具備するビデオカメラ |
Country Status (1)
Country | Link |
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JP (1) | JP4606032B2 (ja) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09211529A (ja) * | 1996-02-02 | 1997-08-15 | Canon Electron Inc | 光量調節装置及び光学機器 |
-
2004
- 2004-01-30 JP JP2004023514A patent/JP4606032B2/ja not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09211529A (ja) * | 1996-02-02 | 1997-08-15 | Canon Electron Inc | 光量調節装置及び光学機器 |
Also Published As
Publication number | Publication date |
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JP2004139137A (ja) | 2004-05-13 |
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