AsiaIPEX
Laser Lighting System Incorporating an Additional Scattered Laser
Technology Benefits
High power from small chip area creating coherent lightFewer devices needed for application, reduces costTrue point source of lightSuperior data transmission speedsImproved color quality
Technology Application
Laser LightingDisplay applications (projectors, televisions, etc.)Direction lighting (car headlights, spot lighting, etc.)Visible light communications
Detailed Technology Description
Researchers at the University of California, Santa Barbara have developed a laser lighting system that uses two (or more) laser sources of different wavelengths to improve the color quality of the light emitted. This invention uses a long wavelength laser that is both less expensive and more reliable than a red phosphor. The produced color has improved rendering and a warmer color temperature. The longer wavelength laser can be scattered by the same phosphor used to create white light to ensure the overall system is safe with uniform color distribution.
Others
Background
Existing laser light systems produce light with a low color rendering index (CRI) or a cool correlated color temperature (CCT), both of which are undesirable. To improve these characteristics, the spectrum of light must be adjusted, which is typically done in industry using phosphors. However, stable red phosphors are very difficult to create, making this quite challenging. Additionally, for laser lighting systems that operate at high power, most red phosphors degrade quickly.
Additional Technologies by these Inventors
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29305/2018-416-0
Related Cases
2018-416-0
Country/Region
USA
