JPS6461968A - Light-emitting element - Google Patents

Light-emitting element

Info

Publication number
JPS6461968A
JPS6461968A JP21972187A JP21972187A JPS6461968A JP S6461968 A JPS6461968 A JP S6461968A JP 21972187 A JP21972187 A JP 21972187A JP 21972187 A JP21972187 A JP 21972187A JP S6461968 A JPS6461968 A JP S6461968A
Authority
JP
Japan
Prior art keywords
substrate
light
resistance
alumina
proof performance
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
JP21972187A
Other languages
Japanese (ja)
Inventor
Yoshifumi Bito
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.)
Kyocera Corp
Original Assignee
Kyocera Corp
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 Kyocera Corp filed Critical Kyocera Corp
Priority to JP21972187A priority Critical patent/JPS6461968A/en
Publication of JPS6461968A publication Critical patent/JPS6461968A/en
Pending legal-status Critical Current

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  • Led Devices (AREA)

Abstract

PURPOSE:To improve corrosion-proof performance, heat resistance, scar resistance, mechanical strength, environment resistance, and reliability, by forming light-emitting diodes both on an alumina singlecrystalline substrate and on the substrate and by radiating light from this light-emitting diode and projecting this light through the substrate. CONSTITUTION:An n-type Ga1-xAlx As layer 2, a P type Ga1-yAly As layer 3, and a P<+> type GaAs layer 4 are laminated serially on an alumina singlecrystalline substrate 1. An LED array composed in this way is provided with a transmissive substrate 1 with very high transparency. Accordingly, luminous energy generated on respective layers 2-4 is made to pass through the substrate 1. The alumina single-crystalline substrate 1 is excellent in corrosion- proof performance, oxidation-proof performance, heat impact resistance, end the like. Because of its large hardness, the substrate is excellent in scar resistance, too. Even if a light-irradiated surface is exposed under physically or chemically severe conditions, the substrate is not deteriorated at all.
JP21972187A 1987-09-02 1987-09-02 Light-emitting element Pending JPS6461968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21972187A JPS6461968A (en) 1987-09-02 1987-09-02 Light-emitting element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21972187A JPS6461968A (en) 1987-09-02 1987-09-02 Light-emitting element

Publications (1)

Publication Number Publication Date
JPS6461968A true JPS6461968A (en) 1989-03-08

Family

ID=16739928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21972187A Pending JPS6461968A (en) 1987-09-02 1987-09-02 Light-emitting element

Country Status (1)

Country Link
JP (1) JPS6461968A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51147986A (en) * 1975-06-13 1976-12-18 Semiconductor Res Found Semiconductor light emission device
JPS57102081A (en) * 1980-12-17 1982-06-24 Matsushita Electric Ind Co Ltd Manufacture of luminous element
JPS6074483A (en) * 1983-09-30 1985-04-26 Toshiba Corp Light-emitting diode

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51147986A (en) * 1975-06-13 1976-12-18 Semiconductor Res Found Semiconductor light emission device
JPS57102081A (en) * 1980-12-17 1982-06-24 Matsushita Electric Ind Co Ltd Manufacture of luminous element
JPS6074483A (en) * 1983-09-30 1985-04-26 Toshiba Corp Light-emitting diode

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