LED lighting apparatus having sterilizing function
US11517635B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2022 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Feb 21, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting apparatus including a white light emitting device including at least one first light emitting diode and a wavelength converter to implement white light, and at least one second light emitting diode to emit light to sterilize at least one pathogenic microorganism, in which the first light emitting diode emits light having a central wavelength in a range of violet or blue, the second light emitting diode emits light having a central wavelength in a range of about 400 nm to about 420 nm, the wavelength converter includes a plurality of wavelength conversion substances to convert light of the first light emitting diode into white light, and an irradiance of light emitted from the second light emitting diode is configured to be greater than that from the white light emitting device at the same wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.