LED lighting apparatus and lighting system having the same
US11737184B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2022 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | May 27, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lighting apparatus including a controller, an LED driver, and an LED luminaire including: a first light emitting unit for general lighting; and at least one of a second light emitting unit to cause production of vitamin D upon irradiation, a third light emitting unit to cause production of a cell activating substance upon irradiation, and a fourth light emitting unit to sterilize pathogenic microorganisms, in which the controller controls the LED driver to change a color temperature of the first light emitting unit in accordance with a change in a color temperature of sunlight, and to change an irradiance of light emitted from at least one of the second, third, and fourth light emitting units according to time, and the LED luminaire includes a greater number of the first light emitting unit than any of the second, third, and fourth light emitting units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.