JPS56147532A - Photoelectric converter - Google Patents

Photoelectric converter

Info

Publication number
JPS56147532A
JPS56147532A JP5047580A JP5047580A JPS56147532A JP S56147532 A JPS56147532 A JP S56147532A JP 5047580 A JP5047580 A JP 5047580A JP 5047580 A JP5047580 A JP 5047580A JP S56147532 A JPS56147532 A JP S56147532A
Authority
JP
Japan
Prior art keywords
inputted
output
photoelectric conversion
amplifier
elements
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
JP5047580A
Other languages
Japanese (ja)
Inventor
Mitsuyoshi Kimura
Kenichiro Takahashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5047580A priority Critical patent/JPS56147532A/en
Publication of JPS56147532A publication Critical patent/JPS56147532A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/69—Electrical arrangements in the receiver
    • H04B10/697—Arrangements for reducing noise and distortion
    • H04B10/6972—Arrangements for reducing noise and distortion using passive filtering

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Light Receiving Elements (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To give the gain independently of the variance of the conversion efficiency of a plurality of photoelectric conversion elements, without gain adjustment, by feeding back the correction light to the photoelectric conversion elements. CONSTITUTION:The output of the photoelectric conversion elements 12 is inputted to the band pass filters 16, 18 via the amplifier 14. The output of the filter 16 is inputted to the signal processing section 20 and the output of the filter 18 is inputted to the rectifier circuit 22. The output of the circuit 22 is inputted to the comparison amplifier 24. The reference signal A3 from the reference source 26 is inputted to the amplifier 24, and the output of the amplifier 24 is inputted to the photoelectric conversion controlling section 28. The stable and prescribed gain independently of the variance of the gain of the elements 12 at replacement can be obtained, by giving feedback to the elements 12 and controlling the signal of the corrected light 44 so that it is in coincidence with the reference signal.
JP5047580A 1980-04-18 1980-04-18 Photoelectric converter Pending JPS56147532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5047580A JPS56147532A (en) 1980-04-18 1980-04-18 Photoelectric converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5047580A JPS56147532A (en) 1980-04-18 1980-04-18 Photoelectric converter

Publications (1)

Publication Number Publication Date
JPS56147532A true JPS56147532A (en) 1981-11-16

Family

ID=12859916

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5047580A Pending JPS56147532A (en) 1980-04-18 1980-04-18 Photoelectric converter

Country Status (1)

Country Link
JP (1) JPS56147532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5902859B1 (en) * 2015-02-27 2016-04-13 株式会社オプトエレクトロニクス Control circuit for optical information reader

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5902859B1 (en) * 2015-02-27 2016-04-13 株式会社オプトエレクトロニクス Control circuit for optical information reader

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