Wavelength conversion apparatus and method for manufacturing the same
US12237446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2021 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Jul 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8515
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a wavelength conversion apparatus and a manufacturing method therefor. The wavelength conversion apparatus comprises a light-emitting layer, a reflective film, a sintering silver layer, and a substrate stacked successively. The light-emitting layer converts an excitation light into exit light having a different wavelength from the excitation light. The reflective film is plated on the light-emitting layer and used for reflecting the exit light emitted by the light-emitting layer. The sintering silver layer is connected to the light-emitting layer and the substrate; the sintering silver layer comprises flake silver particles connected with each other via surface contact; and the sintering silver layer is formed by sintering spherical silver nanoparticles and flake silver particles. The wavelength conversion apparatus is characterized by excellent thermal conductivity and high luminous efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.