JPS5644273A - Solid image pickup device - Google Patents

Solid image pickup device

Info

Publication number
JPS5644273A
JPS5644273A JP12102079A JP12102079A JPS5644273A JP S5644273 A JPS5644273 A JP S5644273A JP 12102079 A JP12102079 A JP 12102079A JP 12102079 A JP12102079 A JP 12102079A JP S5644273 A JPS5644273 A JP S5644273A
Authority
JP
Japan
Prior art keywords
light quantity
image pickup
solid image
led12
bias
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
Application number
JP12102079A
Other languages
Japanese (ja)
Other versions
JPS631788B2 (en
Inventor
Kenro Sone
Susumu Hashimoto
Seiji Ishikawa
Takao Kunii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP12102079A priority Critical patent/JPS5644273A/en
Publication of JPS5644273A publication Critical patent/JPS5644273A/en
Publication of JPS631788B2 publication Critical patent/JPS631788B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

PURPOSE:To improve the picture quality for a low illumination intensity, by enlarging the bias charge injection quantity when the signal charge quantity is small in the solid image pickup device. CONSTITUTION:Bias value determining circuit 13 controls the output of driving circuit 14, which drives LED12, on a basis of the video signal charge quantity of solid image pickup plate 10 to hold always the sum of the incident signal light quantity and the lighting light quantity of LED12 near the saturation light quantity of solid image pickup plate 10. That is, the lighting light quantity of LED12 is reduced to reduce the bias charge injection quantity when the incident signal light quantity is large, and the lighting light quantity of LED12 is increased to increase the bias charge injection quantity when the incident signal light quantity is reduced. Consequently, since the bias charge injection quantity can be increased for a low illumination intensity, the charge transfer efficiency can be improved to improve the picture quality.
JP12102079A 1979-09-20 1979-09-20 Solid image pickup device Granted JPS5644273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12102079A JPS5644273A (en) 1979-09-20 1979-09-20 Solid image pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12102079A JPS5644273A (en) 1979-09-20 1979-09-20 Solid image pickup device

Publications (2)

Publication Number Publication Date
JPS5644273A true JPS5644273A (en) 1981-04-23
JPS631788B2 JPS631788B2 (en) 1988-01-14

Family

ID=14800813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12102079A Granted JPS5644273A (en) 1979-09-20 1979-09-20 Solid image pickup device

Country Status (1)

Country Link
JP (1) JPS5644273A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4755875A (en) * 1985-03-07 1988-07-05 The Marconi Company Limited Telecine apparatus including an electro-optical image transducer illuminated by a bias light source

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4850635A (en) * 1971-10-27 1973-07-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4850635A (en) * 1971-10-27 1973-07-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4755875A (en) * 1985-03-07 1988-07-05 The Marconi Company Limited Telecine apparatus including an electro-optical image transducer illuminated by a bias light source

Also Published As

Publication number Publication date
JPS631788B2 (en) 1988-01-14

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