JPS5585230A - Transducer for light quantity change to step signal - Google Patents

Transducer for light quantity change to step signal

Info

Publication number
JPS5585230A
JPS5585230A JP16078178A JP16078178A JPS5585230A JP S5585230 A JPS5585230 A JP S5585230A JP 16078178 A JP16078178 A JP 16078178A JP 16078178 A JP16078178 A JP 16078178A JP S5585230 A JPS5585230 A JP S5585230A
Authority
JP
Japan
Prior art keywords
thyristor
solar battery
voltage
light quantity
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.)
Pending
Application number
JP16078178A
Other languages
Japanese (ja)
Inventor
Kenichi Yasuda
Shunichiro Yamamoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP16078178A priority Critical patent/JPS5585230A/en
Publication of JPS5585230A publication Critical patent/JPS5585230A/en
Pending 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 convert a change of light quantity whose level width exceeds a fixed level into an electric signal of the step wave form by using a solar battery as a light receiver. CONSTITUTION:When light is applied to the solar battery 1 and is cut off momentarily, outputs are produced in the differential circuit 2 and amplifier circuit 3 by a change of electromotive force of the solar battery, the Zener diode 5 and the thyristor 7 conduct. As a result, a current flows in the main circuit of the thyristor 7, a voltage is developed between both terminals of the output resistance 8. Current in the output circuit 6 is made greater than the latching voltage of the thyristor 7, and an electric signal of the step voltage is taken from both terminals of the output resistance 8.
JP16078178A 1978-12-22 1978-12-22 Transducer for light quantity change to step signal Pending JPS5585230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16078178A JPS5585230A (en) 1978-12-22 1978-12-22 Transducer for light quantity change to step signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16078178A JPS5585230A (en) 1978-12-22 1978-12-22 Transducer for light quantity change to step signal

Publications (1)

Publication Number Publication Date
JPS5585230A true JPS5585230A (en) 1980-06-27

Family

ID=15722303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16078178A Pending JPS5585230A (en) 1978-12-22 1978-12-22 Transducer for light quantity change to step signal

Country Status (1)

Country Link
JP (1) JPS5585230A (en)

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