JPS56120925A - Optical sensor device - Google Patents

Optical sensor device

Info

Publication number
JPS56120925A
JPS56120925A JP2405680A JP2405680A JPS56120925A JP S56120925 A JPS56120925 A JP S56120925A JP 2405680 A JP2405680 A JP 2405680A JP 2405680 A JP2405680 A JP 2405680A JP S56120925 A JPS56120925 A JP S56120925A
Authority
JP
Japan
Prior art keywords
luminous
light
elements
receiving
groups
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
JP2405680A
Other languages
Japanese (ja)
Inventor
Shizuo Sato
Yuji Hiramitsu
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 JP2405680A priority Critical patent/JPS56120925A/en
Publication of JPS56120925A publication Critical patent/JPS56120925A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Solid State Image Pick-Up Elements (AREA)

Abstract

PURPOSE:To control the rise in cost at a low level even when the number of luminous (light-receiving) elements is increased by making groups of light-receiving elements correspond to groups of luminous elements respectively, driving optional one of the groups of luminous elements selectively, and thereby enabling input of the output of all the light-receiving elements into one amplifying circuit. CONSTITUTION:Collectors of phototransistors 21-2n are connected commonly and inputted in the amplifying circuit 3. When control data 8 is latched in a latch circuit 6, normal-direction bias voltage is impressed on the base of one of transistors 71- 7n designated by the control data 8 and thereby the transistors, e.g. 71, is turned on. By this, driving current flows to a luminous diode 11 to make the latter luminous and thus only the output signal of the phototransistor 21 receiving the light from the luminous diode 11 comes out at the output of the amplifying circuit 3.
JP2405680A 1980-02-29 1980-02-29 Optical sensor device Pending JPS56120925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2405680A JPS56120925A (en) 1980-02-29 1980-02-29 Optical sensor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2405680A JPS56120925A (en) 1980-02-29 1980-02-29 Optical sensor device

Publications (1)

Publication Number Publication Date
JPS56120925A true JPS56120925A (en) 1981-09-22

Family

ID=12127796

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2405680A Pending JPS56120925A (en) 1980-02-29 1980-02-29 Optical sensor device

Country Status (1)

Country Link
JP (1) JPS56120925A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4952678A (en) * 1972-09-19 1974-05-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4952678A (en) * 1972-09-19 1974-05-22

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