Phosphor wheel with inorganic binder
US11578264B2 · kind B2 · utility
0Cited by
2References
20Claims
0Family size
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Key dates
| Filing date | Sep 20, 2017 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Sep 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B33/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light conversion device is disclosed. The light conversion device includes a substrate and a wavelength conversion element (111). The wavelength conversion element (111) includes an inorganic binder, such as sodium silicate. Also disclosed are phosphor wheels and light engines including such phosphor wheels. Further disclosed are high-power laser projection display systems comprising a laser having a power of from about 60 W and about 300 W and a light conversion device. The use of an inorganic binder permits high thermal stability at reasonable cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.