JPS5225660A - Optical device for road or the like - Google Patents

Optical device for road or the like

Info

Publication number
JPS5225660A
JPS5225660A JP10188975A JP10188975A JPS5225660A JP S5225660 A JPS5225660 A JP S5225660A JP 10188975 A JP10188975 A JP 10188975A JP 10188975 A JP10188975 A JP 10188975A JP S5225660 A JPS5225660 A JP S5225660A
Authority
JP
Japan
Prior art keywords
road
optical device
light fluxes
emittance
shortly
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
JP10188975A
Other languages
Japanese (ja)
Inventor
Mutsuo Fujiwara
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.)
SEIWA DENKI KK
Seiwa Electric Mfg Co Ltd
Original Assignee
SEIWA DENKI KK
Seiwa Electric Mfg 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 SEIWA DENKI KK, Seiwa Electric Mfg Co Ltd filed Critical SEIWA DENKI KK
Priority to JP10188975A priority Critical patent/JPS5225660A/en
Publication of JPS5225660A publication Critical patent/JPS5225660A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Traffic Control Systems (AREA)

Abstract

PURPOSE: To shorten a distance between optical axis as shortly as possible by reversing the directions of emittance of the adjacent light fluxes in a device in which a plurality of light fluxes are provided.
COPYRIGHT: (C)1977,JPO&Japio
JP10188975A 1975-08-21 1975-08-21 Optical device for road or the like Pending JPS5225660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10188975A JPS5225660A (en) 1975-08-21 1975-08-21 Optical device for road or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10188975A JPS5225660A (en) 1975-08-21 1975-08-21 Optical device for road or the like

Publications (1)

Publication Number Publication Date
JPS5225660A true JPS5225660A (en) 1977-02-25

Family

ID=14312488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10188975A Pending JPS5225660A (en) 1975-08-21 1975-08-21 Optical device for road or the like

Country Status (1)

Country Link
JP (1) JPS5225660A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456378A (en) * 1981-12-21 1984-06-26 North American Philips Corporation Optical position sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456378A (en) * 1981-12-21 1984-06-26 North American Philips Corporation Optical position sensor

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