JPS6461968A - Light-emitting element - Google Patents
Light-emitting elementInfo
- 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
Links
Landscapes
- 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.
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)
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 |
-
1987
- 1987-09-02 JP JP21972187A patent/JPS6461968A/en active Pending
Patent Citations (3)
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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