Light-emitting device, method for designing light-emitting device, method for driving light-emitting device, illumination method, and method for manufacturing light-emitting device
US9997678B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2017 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Jul 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H29/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An object of the present invention is to provide a light-emitting device that can implement a natural, vivid, highly visible and comfortable appearance of colors and appearance of objects as if the objects are seen outdoors, and to provide a light-emitting device that can change the appearance of colors of the illuminated objects so as to satisfy the requirements for various illuminations, and a method for designing thereof. Another object of the present invention is to improve the appearance of colors of a light-emitting device which currently exists or is in use, and which includes a semiconductor light-emitting device of which appearance of colors is not very good. Moreover, another object of the present invention is to provide a method for driving the light-emitting device, an illumination method by the device, and a method for manufacturing the light-emitting device.These objects are achieved by the light-emitting device that incorporates light-emitting elements and satisfies predetermined requirements, in which ϕSSL(λ) emitted from the light-emitting device satisfies a predetermined condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.