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JPS5342845A - Photo coupling device - Google Patents

Photo coupling device

Info

Publication number
JPS5342845A
JPS5342845A JP11770976A JP11770976A JPS5342845A JP S5342845 A JPS5342845 A JP S5342845A JP 11770976 A JP11770976 A JP 11770976A JP 11770976 A JP11770976 A JP 11770976A JP S5342845 A JPS5342845 A JP S5342845A
Authority
JP
Japan
Prior art keywords
coupling device
optical fiber
photo coupling
transluscent
thee
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
JP11770976A
Other languages
Japanese (ja)
Other versions
JPS5640286B2 (en
Inventor
Masamitsu Tokuda
Shigeo Aoki
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
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11770976A priority Critical patent/JPS5342845A/en
Publication of JPS5342845A publication Critical patent/JPS5342845A/en
Publication of JPS5640286B2 publication Critical patent/JPS5640286B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Testing Of Optical Devices Or Fibers (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PURPOSE: To remove the reflected light from thee incident end surface of an optical fiber and a condensing lens and perform satisfactory detection of the broken point, etc. of the optical fiber by coupling a transluscent prism and a cylindrical lens of a square refractive index distribution and entering light therethrough.
COPYRIGHT: (C)1978,JPO&Japio
JP11770976A 1976-09-30 1976-09-30 Photo coupling device Granted JPS5342845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11770976A JPS5342845A (en) 1976-09-30 1976-09-30 Photo coupling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11770976A JPS5342845A (en) 1976-09-30 1976-09-30 Photo coupling device

Publications (2)

Publication Number Publication Date
JPS5342845A true JPS5342845A (en) 1978-04-18
JPS5640286B2 JPS5640286B2 (en) 1981-09-19

Family

ID=14718356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11770976A Granted JPS5342845A (en) 1976-09-30 1976-09-30 Photo coupling device

Country Status (1)

Country Link
JP (1) JPS5342845A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55105206A (en) * 1979-02-05 1980-08-12 Fujitsu Ltd Optical branching and coupling circuit
JPS5621107A (en) * 1979-07-27 1981-02-27 Nec Corp Light isolator coupling device
JPS5745608U (en) * 1980-08-28 1982-03-13

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55105206A (en) * 1979-02-05 1980-08-12 Fujitsu Ltd Optical branching and coupling circuit
JPS5740490B2 (en) * 1979-02-05 1982-08-27
JPS5621107A (en) * 1979-07-27 1981-02-27 Nec Corp Light isolator coupling device
JPS5745608U (en) * 1980-08-28 1982-03-13

Also Published As

Publication number Publication date
JPS5640286B2 (en) 1981-09-19

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