Ultraviolet light-emitting element
US11398584B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jan 30, 2019 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Jul 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/83
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is an ultraviolet light-emitting element which uses an electron emission operation. The ultraviolet light-emitting element is sealed to maintain a high degree of vacuum. A emission substrate is prepared for the electron emission and an electron emitted from the emission substrate passes through a control substrate. The electron, which has passed through the control substrate, collides with a light-emitting substrate, from which formation of a p-type semiconductor has been excluded, and thus forms ultraviolet light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.