JPS5583823A - Wide-band photo detection circuit - Google Patents

Wide-band photo detection circuit

Info

Publication number
JPS5583823A
JPS5583823A JP15894078A JP15894078A JPS5583823A JP S5583823 A JPS5583823 A JP S5583823A JP 15894078 A JP15894078 A JP 15894078A JP 15894078 A JP15894078 A JP 15894078A JP S5583823 A JPS5583823 A JP S5583823A
Authority
JP
Japan
Prior art keywords
amplifier
load resistance
parallel
wide
detection circuit
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
JP15894078A
Other languages
Japanese (ja)
Other versions
JPS6114448B2 (en
Inventor
Tokio Fujimoto
Kazuo Ohashi
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.)
SEIKATSU EIZOU JOHO SYST KAIHATSU KYOKAI
Sumitomo Electric Industries Ltd
Original Assignee
SEIKATSU EIZOU JOHO SYST KAIHATSU KYOKAI
Sumitomo Electric Industries 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 SEIKATSU EIZOU JOHO SYST KAIHATSU KYOKAI, Sumitomo Electric Industries Ltd filed Critical SEIKATSU EIZOU JOHO SYST KAIHATSU KYOKAI
Priority to JP15894078A priority Critical patent/JPS5583823A/en
Publication of JPS5583823A publication Critical patent/JPS5583823A/en
Publication of JPS6114448B2 publication Critical patent/JPS6114448B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:To obtain a good-S/N and high-band photoelectric conversion electric signal characteristic by inserting a positive-phase amplifier of an approximately voltage gain 1 in parallel to a photo diode and outputting a synthesized voltage of this amplifier and a load resistance. CONSTITUTION:Positive-phase amplifier A of an approximately voltage gain 1 is inserted in parallel to photo diode iS, and a synthesized voltage of amplifier A and load resistance R is outputted. As the result, the input impedance of amplifier A can be large, and load resistance R can be made of a large value. Since the input capacity of amplifier A intself is in parallel with load resistance R, the influence of the input capacity can be reduced. Consequently, a good-S/N and high-band photoelectric conversion electric signal characteristic can be obtained.
JP15894078A 1978-12-21 1978-12-21 Wide-band photo detection circuit Granted JPS5583823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15894078A JPS5583823A (en) 1978-12-21 1978-12-21 Wide-band photo detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15894078A JPS5583823A (en) 1978-12-21 1978-12-21 Wide-band photo detection circuit

Publications (2)

Publication Number Publication Date
JPS5583823A true JPS5583823A (en) 1980-06-24
JPS6114448B2 JPS6114448B2 (en) 1986-04-18

Family

ID=15682660

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15894078A Granted JPS5583823A (en) 1978-12-21 1978-12-21 Wide-band photo detection circuit

Country Status (1)

Country Link
JP (1) JPS5583823A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102636255A (en) * 2012-04-12 2012-08-15 南通润邦电气工程有限公司 Laser light intensity dispatching and amplifying circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102636255A (en) * 2012-04-12 2012-08-15 南通润邦电气工程有限公司 Laser light intensity dispatching and amplifying circuit

Also Published As

Publication number Publication date
JPS6114448B2 (en) 1986-04-18

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