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JPS57131177A - Photoelectric converting device - Google Patents

Photoelectric converting device

Info

Publication number
JPS57131177A
JPS57131177A JP56016355A JP1635581A JPS57131177A JP S57131177 A JPS57131177 A JP S57131177A JP 56016355 A JP56016355 A JP 56016355A JP 1635581 A JP1635581 A JP 1635581A JP S57131177 A JPS57131177 A JP S57131177A
Authority
JP
Japan
Prior art keywords
photodetecting element
array
accordance
leakage current
photodetecting
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
Application number
JP56016355A
Other languages
Japanese (ja)
Inventor
Masahiro Kawasaki
Harumi Aoki
Koji Suzuki
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co Ltd
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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Priority to JP56016355A priority Critical patent/JPS57131177A/en
Priority to US06/345,122 priority patent/US4479062A/en
Priority to GB8203093A priority patent/GB2093988B/en
Priority to DE3203967A priority patent/DE3203967C2/en
Publication of JPS57131177A publication Critical patent/JPS57131177A/en
Priority to US06/593,991 priority patent/US4544848A/en
Priority to GB08412327A priority patent/GB2138130B/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/50—Control of the SSIS exposure
    • H04N25/53—Control of the integration time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/701—Line sensors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Abstract

PURPOSE:To compensate a leakage current of a photodetecting element, and to obtain a sufficient linearity, by making a storage variable in accordance with information related to an incident light beam. CONSTITUTION:A hotoelectric converting part 1 is constituted of a shift register 2, an MOS switch array 3, a photodetecting element array 4, a photodetecting element 5 and a photodetecting element 6. In this state, the photodetecting element array 4 and the photodetecting element 5 are photosensitive parts, and other parts are shaded by an aluminum mask. Information of a difference of outputs between the photodetecting element 5 and the photodetecting element 6 is inputted to a clock generating circuit 7 through a comparator 8, in accordance with which a start pulse for controlling a storage time is generated, and a leakage current of the photodetecting element 5 is compensated.
JP56016355A 1981-02-06 1981-02-06 Photoelectric converting device Pending JPS57131177A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP56016355A JPS57131177A (en) 1981-02-06 1981-02-06 Photoelectric converting device
US06/345,122 US4479062A (en) 1981-02-06 1982-02-02 Photo-electric conversion device with accumulation time control
GB8203093A GB2093988B (en) 1981-02-06 1982-02-03 Avoiding saturation in photoelectric conversion devices
DE3203967A DE3203967C2 (en) 1981-02-06 1982-02-05 Photoelectric conversion device
US06/593,991 US4544848A (en) 1981-02-06 1984-03-27 Photo-electric conversion device with accumulation time control and leakage current compensation
GB08412327A GB2138130B (en) 1981-02-06 1984-05-15 Photoelectric conversion device with leakage current compensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56016355A JPS57131177A (en) 1981-02-06 1981-02-06 Photoelectric converting device

Publications (1)

Publication Number Publication Date
JPS57131177A true JPS57131177A (en) 1982-08-13

Family

ID=11914035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56016355A Pending JPS57131177A (en) 1981-02-06 1981-02-06 Photoelectric converting device

Country Status (1)

Country Link
JP (1) JPS57131177A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140409A (en) * 1983-07-06 1984-08-11 Minolta Camera Co Ltd Focus detecting device
JPS60101516A (en) * 1983-11-08 1985-06-05 Minolta Camera Co Ltd Focus detector of camera using self-scanning type image sensor
JPS6135413A (en) * 1984-07-28 1986-02-19 Olympus Optical Co Ltd Focusing detecting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59140409A (en) * 1983-07-06 1984-08-11 Minolta Camera Co Ltd Focus detecting device
JPS60101516A (en) * 1983-11-08 1985-06-05 Minolta Camera Co Ltd Focus detector of camera using self-scanning type image sensor
JPS6135413A (en) * 1984-07-28 1986-02-19 Olympus Optical Co Ltd Focusing detecting device

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