JPS5740667A - Double beam ray type alarming device - Google Patents

Double beam ray type alarming device

Info

Publication number
JPS5740667A
JPS5740667A JP55116307A JP11630780A JPS5740667A JP S5740667 A JPS5740667 A JP S5740667A JP 55116307 A JP55116307 A JP 55116307A JP 11630780 A JP11630780 A JP 11630780A JP S5740667 A JPS5740667 A JP S5740667A
Authority
JP
Japan
Prior art keywords
light
receiving
emitting
iib
parts
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
JP55116307A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6218030B2 (enExample
Inventor
Takashi 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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP55116307A priority Critical patent/JPS5740667A/ja
Publication of JPS5740667A publication Critical patent/JPS5740667A/ja
Publication of JPS6218030B2 publication Critical patent/JPS6218030B2/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)
JP55116307A 1980-08-22 1980-08-22 Double beam ray type alarming device Granted JPS5740667A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55116307A JPS5740667A (en) 1980-08-22 1980-08-22 Double beam ray type alarming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55116307A JPS5740667A (en) 1980-08-22 1980-08-22 Double beam ray type alarming device

Publications (2)

Publication Number Publication Date
JPS5740667A true JPS5740667A (en) 1982-03-06
JPS6218030B2 JPS6218030B2 (enExample) 1987-04-21

Family

ID=14683764

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55116307A Granted JPS5740667A (en) 1980-08-22 1980-08-22 Double beam ray type alarming device

Country Status (1)

Country Link
JP (1) JPS5740667A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105390A (ja) * 1982-12-09 1984-06-18 Nec Corp 原子ビ−ム管
JPS6431292A (en) * 1987-07-28 1989-02-01 Matsushita Electric Works Ltd Object detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105390A (ja) * 1982-12-09 1984-06-18 Nec Corp 原子ビ−ム管
JPS6431292A (en) * 1987-07-28 1989-02-01 Matsushita Electric Works Ltd Object detector

Also Published As

Publication number Publication date
JPS6218030B2 (enExample) 1987-04-21

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