RPI ID: 2005-101-403
Innovation Summary:
This invention introduces a novel LED package architecture that enables the efficient generation of white light using short-wavelength LEDs (such as UV or blue) in combination with down-conversion materials like phosphors. The design features a reflective cavity that enhances light mixing and color uniformity, while minimizing optical losses and thermal degradation. By optimizing the spatial arrangement of the LED and phosphor materials, the system achieves high luminous efficacy and consistent color output, making it ideal for advanced solid-state lighting applications.
Challenges / Opportunities:
Traditional white LED systems often face challenges such as non-uniform color distribution, reduced efficiency, and phosphor aging due to poor thermal management. This invention addresses these limitations by providing a thermally and optically optimized package that improves both performance and longevity. It opens opportunities in energy-efficient lighting, display technologies, and specialty illumination, where high-quality white light is essential.
Key Benefits / Advantages:
✔ Uniform white light output with improved color consistency
✔ Enhanced luminous efficiency through optimized light extraction
✔ Better thermal management for longer phosphor life
✔ Scalable design compatible with various LED and phosphor combinations
Applications:
• Energy-efficient general lighting
• Display and signage backlighting
• Automotive and aviation lighting
• Medical and task-specific illumination
Keywords:
#whitelightLED #phosphorconversion #LEDpackaging #solidstatelighting #opticaldesign
Intellectual Property:
US Issued Patent 7,750,359
