JP5087229B2 - 閉回路テレビカメラのレンズ絞り調整装置 - Google Patents
閉回路テレビカメラのレンズ絞り調整装置 Download PDFInfo
- Publication number
- JP5087229B2 JP5087229B2 JP2006094115A JP2006094115A JP5087229B2 JP 5087229 B2 JP5087229 B2 JP 5087229B2 JP 2006094115 A JP2006094115 A JP 2006094115A JP 2006094115 A JP2006094115 A JP 2006094115A JP 5087229 B2 JP5087229 B2 JP 5087229B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- lens
- adjustment
- lens aperture
- manual adjustment
- 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.)
- Active
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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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/10—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device a servo-motor providing energy to move the setting member
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/71—Circuitry for evaluating the brightness variation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Diaphragms For Cameras (AREA)
- Studio Devices (AREA)
- Exposure Control For Cameras (AREA)
- Lens Barrels (AREA)
Description
14 レンズ絞り機構
22 絞り羽根
120 差動アンプ
140 選択回路
CS1 第1駆動信号
CS2 第2駆動信号
GM ギアードモータ
S1 明度情報信号
S2 手動調整信号
Vref1 第1基準信号
Vref2 第2基準信号
Claims (1)
- レンズ絞り機構の自動調整と手動調整の切り替えが可能な閉回路テレビカメラのレンズ絞り調整装置であって:
レンズ絞り機構の絞り羽根を駆動するギアードモータと;
自動調整用の第1駆動信号または手動調整用の第2駆動信号に応じて,前記ギアードモータを駆動させる駆動回路と;
撮像環境の明度情報を取得する明度情報取得装置により取得された明度情報信号と目標明度に相当する第1基準信号とを比較して,前記明度情報信号と前記第1基準信号との差分が相殺されるように前記レンズ絞り羽根を駆動させる,前記ギアードモータの駆動量を決定する前記自動調整用の第1駆動信号を出力する比較回路と;
操作者から入力された手動調整信号と,前記手動調整用の第2の駆動信号の限界値を規定する第2基準信号とが入力され,前記手動調整用の第2駆動信号を出力する差動アンプと;
前記自動調整用の第1駆動信号または前記手動調整用の第2駆動信号のいずれかを前記駆動回路に接続して前記ギアードモータを駆動する選択回路と;
を備えたことを特徴とする, 閉回路テレビカメラのレンズ絞り調整装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006094115A JP5087229B2 (ja) | 2006-03-30 | 2006-03-30 | 閉回路テレビカメラのレンズ絞り調整装置 |
CNB2007100890338A CN100559222C (zh) | 2006-03-30 | 2007-03-29 | 闭路电视摄像机的透镜光阑调整装置 |
EP07006573A EP1841212B1 (en) | 2006-03-30 | 2007-03-29 | Lens aperture-adjustment device and closed circuit television camera |
US11/729,802 US7787760B2 (en) | 2006-03-30 | 2007-03-30 | Lens aperture-adjustment device and closed circuit television camera |
KR1020070031402A KR20070098710A (ko) | 2006-03-30 | 2007-03-30 | 폐회로 텔레비전 카메라의 렌즈 조리개 조정장치 |
TW096111212A TW200804966A (en) | 2006-03-30 | 2007-03-30 | Lens aperture-adjustment device of closed circuit television camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006094115A JP5087229B2 (ja) | 2006-03-30 | 2006-03-30 | 閉回路テレビカメラのレンズ絞り調整装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007271699A JP2007271699A (ja) | 2007-10-18 |
JP5087229B2 true JP5087229B2 (ja) | 2012-12-05 |
Family
ID=38180598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006094115A Active JP5087229B2 (ja) | 2006-03-30 | 2006-03-30 | 閉回路テレビカメラのレンズ絞り調整装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7787760B2 (ja) |
EP (1) | EP1841212B1 (ja) |
JP (1) | JP5087229B2 (ja) |
KR (1) | KR20070098710A (ja) |
CN (1) | CN100559222C (ja) |
TW (1) | TW200804966A (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102291539A (zh) * | 2011-09-06 | 2011-12-21 | 天津天地伟业数码科技有限公司 | 摄像机的光圈控制***和控制方法 |
US8968437B2 (en) | 2012-05-02 | 2015-03-03 | Michael J Kline | Jet engine with deflector |
US8657895B2 (en) | 2012-05-02 | 2014-02-25 | Michael J. Kline | Jet engine deflector |
CN103581564B (zh) * | 2012-08-08 | 2016-12-21 | 慧友电子股份有限公司 | 摄像装置的光圈控制***及其方法 |
CN108254994B (zh) * | 2018-03-29 | 2023-11-03 | 深圳市星河泉新材料有限公司 | 一种光圈自动调节结构及调节方法 |
CN111064902B (zh) * | 2019-12-27 | 2021-05-18 | 重庆紫光华山智安科技有限公司 | 一种光圈控制方法、装置及曝光控制方法 |
CN115616831B (zh) * | 2022-06-24 | 2024-03-15 | 华为技术有限公司 | 光圈控制方法、光圈控制器、摄像头模组及电子设备 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4300167A (en) * | 1980-02-07 | 1981-11-10 | Circon Corporation | Automatic iris control system |
JPS5797275A (en) * | 1980-12-08 | 1982-06-16 | Sony Corp | Television camera |
US4399466A (en) * | 1981-12-24 | 1983-08-16 | Calspan Corporation | Dark current compensating lens iris control |
JPS5961807A (ja) * | 1982-09-30 | 1984-04-09 | Canon Inc | 自動焦点制御装置 |
JPS6064581A (ja) | 1983-09-19 | 1985-04-13 | Asahi Seimitsu Kk | 遠隔制御可能なcctvカメラ用レンズの自動絞り制御装置 |
JPS6069967A (ja) * | 1983-09-26 | 1985-04-20 | Asahi Seimitsu Kk | Cctvカメラ用レンズの自動絞り制御装置 |
JPH0642720B2 (ja) | 1984-10-12 | 1994-06-01 | 旭精密株式会社 | Cctvカメラ用レンズの絞り制御方法 |
US4954897A (en) * | 1987-05-22 | 1990-09-04 | Nikon Corporation | Electronic still camera system with automatic gain control of image signal amplifier before image signal recording |
JP2763302B2 (ja) * | 1988-08-31 | 1998-06-11 | キヤノン株式会社 | カメラ、レンズユニット及び撮像装置 |
JPH03274870A (ja) * | 1990-03-24 | 1991-12-05 | Sony Corp | ビデオカメラのアイリス制御装置 |
FR2661523B1 (fr) * | 1990-04-26 | 1998-07-17 | Asahi Optical Co Ltd | Systeme d'appareil photo et objectif photographique correspondant. |
US5253282A (en) * | 1992-04-27 | 1993-10-12 | Lunar Corporation | System for selective material imaging |
JP3610113B2 (ja) * | 1995-03-17 | 2005-01-12 | キヤノン株式会社 | 撮像装置 |
JPH08334725A (ja) * | 1995-06-06 | 1996-12-17 | Fuji Photo Optical Co Ltd | 撮影レンズ部の遮光装置 |
JPH11258653A (ja) * | 1998-03-13 | 1999-09-24 | Fuji Photo Optical Co Ltd | 監視カメラ用レンズ装置 |
JP2001159770A (ja) * | 1999-12-02 | 2001-06-12 | Asahi Precision Co Ltd | Cctvカメラ用レンズの絞り制御装置 |
US6393097B1 (en) * | 2000-12-22 | 2002-05-21 | Ge Medical Systems Global Technology Company, Llc | Digital detector method for dual energy imaging |
-
2006
- 2006-03-30 JP JP2006094115A patent/JP5087229B2/ja active Active
-
2007
- 2007-03-29 EP EP07006573A patent/EP1841212B1/en not_active Not-in-force
- 2007-03-29 CN CNB2007100890338A patent/CN100559222C/zh active Active
- 2007-03-30 US US11/729,802 patent/US7787760B2/en active Active
- 2007-03-30 KR KR1020070031402A patent/KR20070098710A/ko not_active Application Discontinuation
- 2007-03-30 TW TW096111212A patent/TW200804966A/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TWI327677B (ja) | 2010-07-21 |
EP1841212B1 (en) | 2012-05-23 |
CN100559222C (zh) | 2009-11-11 |
US7787760B2 (en) | 2010-08-31 |
CN101046533A (zh) | 2007-10-03 |
TW200804966A (en) | 2008-01-16 |
EP1841212A1 (en) | 2007-10-03 |
KR20070098710A (ko) | 2007-10-05 |
US20070230942A1 (en) | 2007-10-04 |
JP2007271699A (ja) | 2007-10-18 |
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