Title :
Modulation of uniform light pattern with light extraction enhancement by GaN microlens arrays of LEDs
Author :
Lee, Yun-Chih ; Hsu, Chien-Chi ; Yang, Shih-Pu ; Lee, Po-Shen ; Chang, Jenq-Yang ; Wu, Mount-Learn
Author_Institution :
Dept. of Opt. & Photonics, Nat. Central Univ., Jhongli, Taiwan
Abstract :
The uniform light pattern with light extraction enhancement 250% of LEDs with GaN microlens arrays are demonstrated numerically and experimentally. It makes LED light source as a device of spatial-intensity uniformity integrated with GaN-LEDs structure.
Keywords :
III-V semiconductors; electro-optical modulation; gallium compounds; integrated optics; light emitting diodes; light sources; microlenses; wide band gap semiconductors; GaN; integrated LED light source; light extraction enhancement; microlens arrays; spatial-intensity uniformity; uniform light pattern modulation; Filling; Gallium nitride; Lenses; Light emitting diodes; Lighting; Microoptics; Optical arrays; Optical devices; Optical modulation; Photonics; (230.0230) Optical devices; (230.3670) Light-emitting diodes;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
