JPH0226867U - - Google Patents
Info
- Publication number
- JPH0226867U JPH0226867U JP1988103215U JP10321588U JPH0226867U JP H0226867 U JPH0226867 U JP H0226867U JP 1988103215 U JP1988103215 U JP 1988103215U JP 10321588 U JP10321588 U JP 10321588U JP H0226867 U JPH0226867 U JP H0226867U
- Authority
- JP
- Japan
- Prior art keywords
- image sensor
- state image
- solid
- optical black
- surround
- 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
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/63—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to dark current
- H04N25/633—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to dark current by using optical black pixels
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Description
第1図は本考案の実施例を示す模式図、第2図
は本考案を利用した回路のブロツク図、第3図は
従来の固体撮像素子を示す模式図、第4図は映像
信号波形図、第5図は補正信号波形図、第6図は
補正信号を加えた後の映像信号波形図である。
1……固体撮像素子の受光部、2……オプチカ
ルブラツク、4……映像信号、5……加算器、6
……基準電圧、7……比較器、8……補正信号発
生器。
Fig. 1 is a schematic diagram showing an embodiment of the present invention, Fig. 2 is a block diagram of a circuit using the present invention, Fig. 3 is a schematic diagram showing a conventional solid-state image sensor, and Fig. 4 is a video signal waveform diagram. , FIG. 5 is a correction signal waveform diagram, and FIG. 6 is a video signal waveform diagram after the correction signal is added. 1... Light receiving section of solid-state image sensor, 2... Optical black, 4... Video signal, 5... Adder, 6
... Reference voltage, 7 ... Comparator, 8 ... Correction signal generator.
Claims (1)
いて、有効撮像画面の周縁部を囲んで光学的に光
を遮断するオプチカルブラツクを配置したことを
特徴とする固体撮像素子。 A solid-state image sensor for use in a television camera, characterized in that an optical black is arranged to surround the periphery of an effective imaging screen and optically block light.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988103215U JPH0226867U (en) | 1988-08-05 | 1988-08-05 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988103215U JPH0226867U (en) | 1988-08-05 | 1988-08-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0226867U true JPH0226867U (en) | 1990-02-21 |
Family
ID=31333835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988103215U Pending JPH0226867U (en) | 1988-08-05 | 1988-08-05 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0226867U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11166863A (en) * | 1997-12-03 | 1999-06-22 | Nec Corp | Solid image pickup element and read circuit using the same |
JP2017059855A (en) * | 2009-04-07 | 2017-03-23 | ローム株式会社 | Photoelectric conversion device |
-
1988
- 1988-08-05 JP JP1988103215U patent/JPH0226867U/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11166863A (en) * | 1997-12-03 | 1999-06-22 | Nec Corp | Solid image pickup element and read circuit using the same |
JP2017059855A (en) * | 2009-04-07 | 2017-03-23 | ローム株式会社 | Photoelectric conversion device |
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