JPS5533028A - Light-emitting semiconductor device - Google Patents

Light-emitting semiconductor device

Info

Publication number
JPS5533028A
JPS5533028A JP10483878A JP10483878A JPS5533028A JP S5533028 A JPS5533028 A JP S5533028A JP 10483878 A JP10483878 A JP 10483878A JP 10483878 A JP10483878 A JP 10483878A JP S5533028 A JPS5533028 A JP S5533028A
Authority
JP
Japan
Prior art keywords
light
shoulder
emitting
semiconductor device
emitting semiconductor
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
JP10483878A
Other languages
Japanese (ja)
Inventor
Toshimasa Ishida
Haruo Mori
Tamao Kubota
Kotaro Kato
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.)
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry 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 Telegraph and Telephone Corp, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP10483878A priority Critical patent/JPS5533028A/en
Publication of JPS5533028A publication Critical patent/JPS5533028A/en
Pending legal-status Critical Current

Links

Landscapes

  • Led Devices (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)

Abstract

PURPOSE: To provide the top of a light-emitting semiconductor device with a plurality of parts of high luminous intensity, by cutting the shoulder of the light-emitting top of the device along a straight line or a curve or a combination thereof at an angle of 30 to 60° to the surface of the light-emitting top.
CONSTITUTION: The shoulder of the light-emitting top of the light-emitting semiconductor device is cut at a depth of about 1000μm and the angle of 30 to 60° to the surface of the top so that the plural parts of high luminous intensity are provided on the top of the device. Light generated by the recombination of positive holes with electrons at a point A on a cross section of the device is emitted therefrom in directions 9 and 11 in the same manner as when the shoulder is not out. Since the shoulder is cut in fact, the light is emitted from the device in other directions 10 as well as in said directions 9, 11. As a result, the efficiency of the light emission is raised about twice.
COPYRIGHT: (C)1980,JPO&Japio
JP10483878A 1978-08-30 1978-08-30 Light-emitting semiconductor device Pending JPS5533028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10483878A JPS5533028A (en) 1978-08-30 1978-08-30 Light-emitting semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10483878A JPS5533028A (en) 1978-08-30 1978-08-30 Light-emitting semiconductor device

Publications (1)

Publication Number Publication Date
JPS5533028A true JPS5533028A (en) 1980-03-08

Family

ID=14391487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10483878A Pending JPS5533028A (en) 1978-08-30 1978-08-30 Light-emitting semiconductor device

Country Status (1)

Country Link
JP (1) JPS5533028A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59135657U (en) * 1983-03-01 1984-09-10 三洋電機株式会社 light emitting diode
JPS60164285A (en) * 1984-02-06 1985-08-27 Furuno Electric Co Ltd Water bottom observing apparatus for dredging work
JPS63109385A (en) * 1986-10-27 1988-05-14 Shipbuild Res Assoc Japan Front monitoring ultrasonic sonar apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59135657U (en) * 1983-03-01 1984-09-10 三洋電機株式会社 light emitting diode
JPS60164285A (en) * 1984-02-06 1985-08-27 Furuno Electric Co Ltd Water bottom observing apparatus for dredging work
JPS63109385A (en) * 1986-10-27 1988-05-14 Shipbuild Res Assoc Japan Front monitoring ultrasonic sonar apparatus

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