Hybrid Laser-Phosphor Light Source for Linear Dimming and High CRI

The patent combines a laser light source and a phosphor-based light source into a single hybrid lighting system. The laser provides coherent light that can be directly controlled for linear dimming, while the phosphor material converts some of this light to different wavelengths. By merging these two light generation mechanisms, the system achieves both the wavelength conversion capability of phosphors and the linear controllability of laser sources, resolving the non-linear behavior issue while maintaining brightness.

The patent changes the operational parameters of the light conversion system by controlling the pump light intensity and the laser light intensity independently. By adjusting these parameters, the system can operate in different modes: at lower pump intensities, the phosphor operates in a linear regime; at higher intensities, the laser component compensates for phosphor saturation. This parameter control enables linear dimming across a wide range while maintaining stable color output.

The patent merges a laser light source with a phosphor-based light conversion system to create a hybrid architecture. The laser provides a coherent, highly directional beam that can be efficiently coupled into the phosphor medium. This combination allows the system to achieve high optical power output while maintaining efficient energy conversion, as the laser's concentrated energy delivery reduces thermal losses compared to conventional broad-spectrum pumping methods.

The patent utilizes parameter changes by controlling the pump light intensity and wavelength to optimize phosphor excitation efficiency. By tuning the pump parameters and adjusting the laser contribution, the system can operate below saturation thresholds where conversion efficiency remains high, or compensate for saturation effects by increasing laser power. This dynamic parameter adjustment enables maintaining high optical power output with minimized energy loss across different operating conditions.

The patent combines a laser light source with a phosphor-based light conversion system to create a hybrid architecture. The laser provides a coherent, highly directional beam that can be efficiently coupled into the phosphor medium. This combination allows the system to achieve high optical power output while maintaining efficient energy conversion, as the laser's concentrated energy delivery reduces thermal losses compared to conventional broad-spectrum pumping methods.

The patent utilizes parameter changes by controlling the pump light intensity and wavelength to optimize phosphor excitation efficiency. By tuning the pump parameters and adjusting the laser contribution, the system can operate below saturation thresholds where conversion efficiency remains high, or compensate for saturation effects by increasing laser power. This dynamic parameter adjustment enables maintaining high optical power output with minimized energy loss across different operating conditions.