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physics.optics2024
Ultra-directional and high-efficiency LEDs via gradient index filled micro-Horn collimators
Alexander Luce, Rasoul Alaee, Aimi Abass
Micro-LEDs (LEDs) are poised to transform AR/VR, display, and optical communication technologies, but they are currently hindered by low light extraction efficiency and non-dire…
physics.optics2021
Playing Ping Pong with Light: Directional Emission of White Light
Heribert Wankerl, Christopher Wiesmann, Laura Kreiner +5
Over the last decades, light-emitting diodes (LED) have replaced common light bulbs in almost every application, from flashlights in smartphones to automotive headlights. Illuminat…