JPS6223816B2 - - Google Patents

Info

Publication number
JPS6223816B2
JPS6223816B2 JP11239680A JP11239680A JPS6223816B2 JP S6223816 B2 JPS6223816 B2 JP S6223816B2 JP 11239680 A JP11239680 A JP 11239680A JP 11239680 A JP11239680 A JP 11239680A JP S6223816 B2 JPS6223816 B2 JP S6223816B2
Authority
JP
Japan
Prior art keywords
light
receiving element
signal
medium
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.)
Expired
Application number
JP11239680A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5735734A (en
Inventor
Ichiro Urano
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.)
NEC Corp
Original Assignee
Nippon Electric Co 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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP11239680A priority Critical patent/JPS5735734A/ja
Publication of JPS5735734A publication Critical patent/JPS5735734A/ja
Publication of JPS6223816B2 publication Critical patent/JPS6223816B2/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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
JP11239680A 1980-08-14 1980-08-14 Transmission light measuring device Granted JPS5735734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11239680A JPS5735734A (en) 1980-08-14 1980-08-14 Transmission light measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11239680A JPS5735734A (en) 1980-08-14 1980-08-14 Transmission light measuring device

Publications (2)

Publication Number Publication Date
JPS5735734A JPS5735734A (en) 1982-02-26
JPS6223816B2 true JPS6223816B2 (en]) 1987-05-25

Family

ID=14585606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11239680A Granted JPS5735734A (en) 1980-08-14 1980-08-14 Transmission light measuring device

Country Status (1)

Country Link
JP (1) JPS5735734A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04106307U (ja) * 1990-12-27 1992-09-14 道廣 菅 交通安全衣

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04106307U (ja) * 1990-12-27 1992-09-14 道廣 菅 交通安全衣

Also Published As

Publication number Publication date
JPS5735734A (en) 1982-02-26

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