JPS5726828A - Television camera - Google Patents
Television cameraInfo
- Publication number
- JPS5726828A JPS5726828A JP10162280A JP10162280A JPS5726828A JP S5726828 A JPS5726828 A JP S5726828A JP 10162280 A JP10162280 A JP 10162280A JP 10162280 A JP10162280 A JP 10162280A JP S5726828 A JPS5726828 A JP S5726828A
- Authority
- JP
- Japan
- Prior art keywords
- image pickup
- course
- photoelectric conversion
- video signal
- white balance
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
- H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Exposure Control For Cameras (AREA)
- Diaphragms For Cameras (AREA)
Abstract
PURPOSE:To automatically adjust a white balance in the course of image pickup, by providing photoelectric conversion elements on diaphragm blades, and adjusting the video signal amplifier gain. CONSTITUTION:On diaphragm blades 25... are provided photoelectric conversion elements 26a-26c corresponding to red, green and blue, respectively. In accordance with detection outputs of these elements 26a-26c are controlled variable gain amplifiers 20-22 having a gain characteristic by which a color difference signal component of a composite video signal 35 becomes zero at the time of image pickup of a white object to be photographed, under various illuminating conditions. Accordingly, even in case when the illuminating conditions, etc. have been varied in the course of image pickup, a white balance is adjusted automatically, and a satisfactory image pickup is executed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10162280A JPS5726828A (en) | 1980-07-23 | 1980-07-23 | Television camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10162280A JPS5726828A (en) | 1980-07-23 | 1980-07-23 | Television camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5726828A true JPS5726828A (en) | 1982-02-13 |
Family
ID=14305491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10162280A Pending JPS5726828A (en) | 1980-07-23 | 1980-07-23 | Television camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5726828A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0138074A2 (en) * | 1983-09-16 | 1985-04-24 | Hitachi, Ltd. | Color video camera signal processing circuit |
US5070571A (en) * | 1988-03-24 | 1991-12-10 | Nippon Wiperblade Co., Ltd. | Windshield wiper |
-
1980
- 1980-07-23 JP JP10162280A patent/JPS5726828A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0138074A2 (en) * | 1983-09-16 | 1985-04-24 | Hitachi, Ltd. | Color video camera signal processing circuit |
US5070571A (en) * | 1988-03-24 | 1991-12-10 | Nippon Wiperblade Co., Ltd. | Windshield wiper |
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