Light wavelength conversion module, illumination system, and projection apparatus
US9581879B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2014 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Mar 23, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light wavelength conversion module including a substrate, a first light wavelength conversion layer, and a first light transmissive layer is provided. The substrate has a light passing-through area and a first light wavelength conversion area. The first light wavelength conversion layer is located at the first light wavelength conversion area and between the first light transmissive layer and the substrate. The first light wavelength conversion layer is suitable for converting a coherent light beam into a first conversion light beam, wherein wavelengths of the coherent light beam and the first conversion light beam are different from each other. An illumination system and a projection apparatus are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.