JPS54149423A - Shutter for image pickup unit - Google Patents
Shutter for image pickup unitInfo
- Publication number
- JPS54149423A JPS54149423A JP5797578A JP5797578A JPS54149423A JP S54149423 A JPS54149423 A JP S54149423A JP 5797578 A JP5797578 A JP 5797578A JP 5797578 A JP5797578 A JP 5797578A JP S54149423 A JPS54149423 A JP S54149423A
- Authority
- JP
- Japan
- Prior art keywords
- pickup
- picture
- shading
- opening slit
- width
- 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.)
- Granted
Links
Abstract
PURPOSE: To correct easily and economically shading generated in the horizontal direction and the vertical direction by changing properly the width of the opening slit of a shutter disc.
CONSTITUTION: Reflection light flux 3 from moving object 2 dependent upon illuminating equipment 1 is caused to pass or cut off by opening slit 5, which is provided on the circumference of rotatable shutter disc 4, and is exposed to light as a static picture on pickup face 8 of pickup tube 7 in pickup unit 6. Then, the width of opening slit 5 is defined as a shape changed according to a shading generation part so that the picture obtained by reproducing pickup signals can be prevented from generating shading. For example, when shading which becomes darker towards the lower part of the reproduced picture is generated, opening slit 9a whose width in the lower part for the pickup picture is wider is used to expose the lower part of the pickup picture to light for a time longer than the upper part of the pickup picture, thereby eliminating shading of the reproduced picture.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53057975A JPS5932032B2 (en) | 1978-05-16 | 1978-05-16 | Shutter for imaging device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53057975A JPS5932032B2 (en) | 1978-05-16 | 1978-05-16 | Shutter for imaging device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54149423A true JPS54149423A (en) | 1979-11-22 |
JPS5932032B2 JPS5932032B2 (en) | 1984-08-06 |
Family
ID=13070999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53057975A Expired JPS5932032B2 (en) | 1978-05-16 | 1978-05-16 | Shutter for imaging device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5932032B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4571629A (en) * | 1984-07-12 | 1986-02-18 | Fuji Photo Optical Co., Ltd. | Rotary shutter device |
JP2007061582A (en) * | 2005-08-02 | 2007-03-15 | Asama Seisakusho:Kk | Locking structure of board box |
-
1978
- 1978-05-16 JP JP53057975A patent/JPS5932032B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4571629A (en) * | 1984-07-12 | 1986-02-18 | Fuji Photo Optical Co., Ltd. | Rotary shutter device |
JP2007061582A (en) * | 2005-08-02 | 2007-03-15 | Asama Seisakusho:Kk | Locking structure of board box |
Also Published As
Publication number | Publication date |
---|---|
JPS5932032B2 (en) | 1984-08-06 |
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