JPS53126881A - Light emitting diode - Google Patents

Light emitting diode

Info

Publication number
JPS53126881A
JPS53126881A JP4147277A JP4147277A JPS53126881A JP S53126881 A JPS53126881 A JP S53126881A JP 4147277 A JP4147277 A JP 4147277A JP 4147277 A JP4147277 A JP 4147277A JP S53126881 A JPS53126881 A JP S53126881A
Authority
JP
Japan
Prior art keywords
light emitting
light
emitting diode
monitoring
face
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
JP4147277A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Mori
Yuichi Ono
Makoto Morioka
Kazuhiro Ito
Kiichi Yamashita
Kazuhiro Kurata
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4147277A priority Critical patent/JPS53126881A/en
Publication of JPS53126881A publication Critical patent/JPS53126881A/en
Pending legal-status Critical Current

Links

Landscapes

  • Led Devices (AREA)

Abstract

PURPOSE: To make possible monitoring of light signals and facilitate discrimination when any trouble occurs in the entire tramsmission system by providing plural exposed regions on the main face of a semiconductor where a PN junction to become a light emitting region is formed and letting a light signal transmitting fiber and a light monitoring fiber face said regions respectively.
COPYRIGHT: (C)1978,JPO&Japio
JP4147277A 1977-04-13 1977-04-13 Light emitting diode Pending JPS53126881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4147277A JPS53126881A (en) 1977-04-13 1977-04-13 Light emitting diode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4147277A JPS53126881A (en) 1977-04-13 1977-04-13 Light emitting diode

Publications (1)

Publication Number Publication Date
JPS53126881A true JPS53126881A (en) 1978-11-06

Family

ID=12609294

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4147277A Pending JPS53126881A (en) 1977-04-13 1977-04-13 Light emitting diode

Country Status (1)

Country Link
JP (1) JPS53126881A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728376A (en) * 1980-07-28 1982-02-16 Fujitsu Ltd Semiconductor optical device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728376A (en) * 1980-07-28 1982-02-16 Fujitsu Ltd Semiconductor optical device

Similar Documents

Publication Publication Date Title
JPS5345119A (en) Solid state pickup element
JPS53126881A (en) Light emitting diode
JPS55116268A (en) Detector of detect maximum value of electric signal and channel having maximum value thereof
JPS5414691A (en) Liminous semiconductor device
JPS5410615A (en) Photoelectric converter device
JPS53108794A (en) Photo detector
JPS53101225A (en) Signal pen
JPS5412689A (en) Photo coupler
JPS52152051A (en) Elevator signal transmitting device
JPS542116A (en) Light source circuit for data imprinting of cameras
JPS5350849A (en) Photo coupler
JPS52134386A (en) Photo coupled semiconductor device
JPS5368185A (en) Light emitting diode
JPS5339169A (en) Detecting system of velocity
JPS5223283A (en) Semiconductor light receiving device
JPS52150992A (en) Photo coupling device
JPS52152186A (en) Photo semiconductor device
JPS5362000A (en) Face guard type light beam type detector
JPS5394887A (en) Optical semiconductor device
JPS5318918A (en) Information reading optical system
JPS52119087A (en) Semiconductor light emitting diode
JPS5345252A (en) Light coupler for semi-conductor laser
JPS53112691A (en) Photo coupling semiconductor device
JPS53103388A (en) Photocoupling semiconductor device
JPS5395061A (en) Distance detecting method