JPS57173759A - Photoelectric tube capable of detecting direction of movement of passing object - Google Patents

Photoelectric tube capable of detecting direction of movement of passing object

Info

Publication number
JPS57173759A
JPS57173759A JP5889181A JP5889181A JPS57173759A JP S57173759 A JPS57173759 A JP S57173759A JP 5889181 A JP5889181 A JP 5889181A JP 5889181 A JP5889181 A JP 5889181A JP S57173759 A JPS57173759 A JP S57173759A
Authority
JP
Japan
Prior art keywords
photoelectric tube
movement
passing object
tube capable
detecting direction
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
JP5889181A
Other languages
Japanese (ja)
Inventor
Ryuzo Hagio
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP5889181A priority Critical patent/JPS57173759A/en
Publication of JPS57173759A publication Critical patent/JPS57173759A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane
    • G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

PURPOSE:To make it possible with simple constitution to detect the direction of movement of a passing object by making opaque the right half and left half of a circular luminscent body for a photoelectric tube used for counting the number of passsengers of, for example, a bus. CONSTITUTION:In a light projection and light receiver (both use photoelectric tube), either one of the right half or left half of the lens in front of a light emitting body is made of opaque glass. Then the shape of the output wave of the light receiver is changed according to whether an object 3 to be detected moves in the direction of the arrow mark 4 or the arrow mark 5. Direction of the moving object 3 can be detected by judging the shape of the output wave.
JP5889181A 1981-04-18 1981-04-18 Photoelectric tube capable of detecting direction of movement of passing object Pending JPS57173759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5889181A JPS57173759A (en) 1981-04-18 1981-04-18 Photoelectric tube capable of detecting direction of movement of passing object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5889181A JPS57173759A (en) 1981-04-18 1981-04-18 Photoelectric tube capable of detecting direction of movement of passing object

Publications (1)

Publication Number Publication Date
JPS57173759A true JPS57173759A (en) 1982-10-26

Family

ID=13097400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5889181A Pending JPS57173759A (en) 1981-04-18 1981-04-18 Photoelectric tube capable of detecting direction of movement of passing object

Country Status (1)

Country Link
JP (1) JPS57173759A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507870U (en) * 1973-05-18 1975-01-27
JPS5046383A (en) * 1973-08-29 1975-04-25

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507870U (en) * 1973-05-18 1975-01-27
JPS5046383A (en) * 1973-08-29 1975-04-25

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