On the Requirements for Achieving Angular Homogeneity in Phosphor Converted High Power Flip-Chip Light-Emitting Diodes

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概要

• 論文の詳細を見る

• We show numerical results based on optical ray-tracing which indicate the prerequisites for achieving angular homogeneity of the white light emitted from high power light-emitting diodes (LEDs) in flip-chip configuration. Since the two light sources that comprise the white light, the blue LED light and the yellow phosphor-converted light, have different natures, the top height and the lateral width of the phosphor coating as well as its phosphor concentration have to be precisely adjusted in order to achieve similar irradiance and/or radiant intensity distributions of both the blue and yellow light on a detector surrounding the white LED light source.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2009-07-25

著者

• Wenzl Franz

  Institute Of Solid State Physics Graz University Of Technology

• Leising Gunther

  Institut Fur Festkorperphysik Technische Universitat Graz

• Krenn Joachim

  Institute of Nanostructured Materials and Photonics, Joanneum Research Forschungsges. mbH, Franz-Pichler Straße 30, A-8160 Weiz, Austria

• Hartmann Paul

  LEDON Lighting Jennersdorf GmbH, Technologiepark 10, A-8380 Jennersdorf, Austria

• Sommer Christian

  Institute of Nanostructured Materials and Photonics, Joanneum Research Forschungsges. mbH, Franz-Pichler Straße 30, A-8160 Weiz, Austria

• Pachler Peter

  LEDON Lighting Jennersdorf GmbH, Technologiepark 10, A-8380 Jennersdorf, Austria

• Schweighart Marko

  LEDON Lighting Jennersdorf GmbH, Technologiepark 10, A-8380 Jennersdorf, Austria

• Tasch Stefan

  LEDON Lighting Jennersdorf GmbH, Technologiepark 10, A-8380 Jennersdorf, Austria

• Sommer Christian

  Institute of Nanostructured Materials and Photonics, Joanneum Research Forschungsges. mbH, Franz-Pichler Straße 30, A-8160 Weiz, Austria

• Wenzl Franz

  Institute of Nanostructured Materials and Photonics, Joanneum Research Forschungsges. mbH, Franz-Pichler Straße 30, A-8160 Weiz, Austria

関連論文

• Solution Processed Conjugated Polymer Multilayer Structures for Light Emitting Devices
• White Light Emission from a Polymer-Macromolecule Blend System Due to Energy and Charge Transfer
• On the Requirements for Achieving Angular Homogeneity in Phosphor Converted High Power Flip-Chip Light-Emitting Diodes
• Solution Processed Conjugated Polymer Multilayer Structures for Light Emitting Devices

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