JPS54145429A - Pickup unit - Google Patents
Pickup unitInfo
- Publication number
- JPS54145429A JPS54145429A JP5432978A JP5432978A JPS54145429A JP S54145429 A JPS54145429 A JP S54145429A JP 5432978 A JP5432978 A JP 5432978A JP 5432978 A JP5432978 A JP 5432978A JP S54145429 A JPS54145429 A JP S54145429A
- Authority
- JP
- Japan
- Prior art keywords
- pickup tube
- electron beam
- pickup
- fixed level
- blanking
- 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
Landscapes
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
PURPOSE: To prevent halation due to a difference in illumination in the same visual field by providing the 2nd pickup tube which takes the picture of the same subject with the horizontal-blanking-period electron beam of the 1st pickup tube ON and by controlling the electron beam of the 1st pickup tube by the output of the 2nd one more than a fixed level.
CONSTITUTION: A light beam after penetrating taking lens 1 for pickup tubes is branched by half-mirror 2; one beam is applied to the 1st pickup tube 3a which outputs the video signal of a subject, and the other is to the 2nd pickup tube 3b which turns on an electron beam in the horizontal blanking interval of pickup tube 3a. Further, waveform-shaping circuit 6 is connected to video amplifier 5b which detects components more than a fixed level from the output of the 2nd pickup tube 3b, and detection signal E more than the fixed level is detected by this circuit 6 and then supplied to blanking circuit 7 of the 1st pickup tube 3a so as to turn the electron beam of pickup tube 3a ON in the horizontal blanking period, thereby preventing halation due to a difference in illumination in the same visual field.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5432978A JPS54145429A (en) | 1978-05-08 | 1978-05-08 | Pickup unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5432978A JPS54145429A (en) | 1978-05-08 | 1978-05-08 | Pickup unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54145429A true JPS54145429A (en) | 1979-11-13 |
Family
ID=12967543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5432978A Pending JPS54145429A (en) | 1978-05-08 | 1978-05-08 | Pickup unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54145429A (en) |
-
1978
- 1978-05-08 JP JP5432978A patent/JPS54145429A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5778286A (en) | Electronic camera | |
JPS5684073A (en) | Picture signal reading method | |
JPS55121778A (en) | Automatic controller for sensitivity of television camera | |
JPS5783971A (en) | Spot exposure control circuit | |
JPS5579576A (en) | Television camera | |
JPS536531A (en) | Frequency multiplex type color television camera | |
JPS54161821A (en) | Picture tracking device | |
JPS54145429A (en) | Pickup unit | |
JPS5212517A (en) | Binalizing device of video signal | |
JPS5423322A (en) | Automatic regulator for brightness of television screen | |
JPS54153589A (en) | Bed unit for x-ray television | |
JPS53126817A (en) | Level controller of video signal | |
JPS5437429A (en) | Automaitic color shift correcting system for color television camera | |
JPS5510724A (en) | X-ray apparatus | |
JPS52155013A (en) | Image pickup unit | |
JPS5356921A (en) | Exposure control system for television caemra | |
JPS5478617A (en) | Automatic level adjusting system for video signal | |
JPS53117930A (en) | False signal elimination system for single-tube type color television camer a | |
JPS52110030A (en) | Detector for distinctness of object image | |
JPS5432017A (en) | Receiving device for still/motion pictures | |
JPS5396625A (en) | Automatic astigmatism control system of color camera | |
JPS5333141A (en) | Automatic converting device for converting monochrome picture into color one | |
JPS53148917A (en) | Aural signal isolator | |
JPS5588296A (en) | X-ray television device | |
JPS5211948A (en) | Flying spot system image reference device |