JPS5728279A - Photoelectric switch - Google Patents

Photoelectric switch

Info

Publication number
JPS5728279A
JPS5728279A JP10324480A JP10324480A JPS5728279A JP S5728279 A JPS5728279 A JP S5728279A JP 10324480 A JP10324480 A JP 10324480A JP 10324480 A JP10324480 A JP 10324480A JP S5728279 A JPS5728279 A JP S5728279A
Authority
JP
Japan
Prior art keywords
timer
output
scanning
sent
pulse
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
JP10324480A
Other languages
Japanese (ja)
Other versions
JPS6214794B2 (en
Inventor
Takashi Hasebe
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP10324480A priority Critical patent/JPS5728279A/en
Publication of JPS5728279A publication Critical patent/JPS5728279A/en
Publication of JPS6214794B2 publication Critical patent/JPS6214794B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To perform the judgment of the size of an object to be sensed and the setting of the field of sensing by a simple constitution, by fixing the period of scanning pulses of semiconductor image sensor, and processing the pulse in a timer. CONSTITUTION:An object to be sensed 2 exists between a light source which transmits parallel light and a condenser lens, and the light is projected on many light sensing elements in a semiconductor image sensor 11. The scanning pulses phi are sent to the semiconductor image sensor 11 from a frequency fixed type oscillator 21. Each element is sequentially scanned by a scanning pulse from the scanning start pulse ST to the scanning end pulse ED, and the brightness state is read out. This signal is sent to a D type flip flop 14 through an amplifier 12 and a binary circuit 13, and further sent to a timer 31. An output H is generated for a specific time length in the timer 31 when its input is changed for from H to L. An output L not sent out to a timer 17 when the output of the timer 31 is H, and the output is not generated in the timer 17. Therefore, the object to be sensed having an arbitrary size can be judged by only changing the setting time of the timer 31.
JP10324480A 1980-07-28 1980-07-28 Photoelectric switch Granted JPS5728279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10324480A JPS5728279A (en) 1980-07-28 1980-07-28 Photoelectric switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10324480A JPS5728279A (en) 1980-07-28 1980-07-28 Photoelectric switch

Publications (2)

Publication Number Publication Date
JPS5728279A true JPS5728279A (en) 1982-02-15
JPS6214794B2 JPS6214794B2 (en) 1987-04-03

Family

ID=14349021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10324480A Granted JPS5728279A (en) 1980-07-28 1980-07-28 Photoelectric switch

Country Status (1)

Country Link
JP (1) JPS5728279A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6199882A (en) * 1984-10-23 1986-05-17 Tokyo Shokai:Kk Tablet detecting device
JPS6428581A (en) * 1987-07-23 1989-01-31 Tokyo Electric Power Co Monitoring method and apparatus with tv camera
JPH01152283U (en) * 1988-04-13 1989-10-20
EP1148353A2 (en) * 2000-04-22 2001-10-24 Leuze electronic GmbH + Co. Optical sensor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6199882A (en) * 1984-10-23 1986-05-17 Tokyo Shokai:Kk Tablet detecting device
JPS6428581A (en) * 1987-07-23 1989-01-31 Tokyo Electric Power Co Monitoring method and apparatus with tv camera
JPH01152283U (en) * 1988-04-13 1989-10-20
EP1148353A2 (en) * 2000-04-22 2001-10-24 Leuze electronic GmbH + Co. Optical sensor
EP1148353A3 (en) * 2000-04-22 2003-05-28 Leuze electronic GmbH + Co. Optical sensor

Also Published As

Publication number Publication date
JPS6214794B2 (en) 1987-04-03

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