摘要 | 第1-6页 |
ABSTRACT | 第6-8页 |
Acknowledgements | 第8-12页 |
Nomenclature | 第12-13页 |
List Of Tables | 第13-15页 |
List Of figures | 第15-18页 |
Introduction | 第18-34页 |
·Preface | 第18-30页 |
·Development of lighting | 第18-19页 |
·LEDs advantages | 第19-20页 |
·LEDs applications | 第20-21页 |
·Lighting principle of LEDs | 第21-25页 |
·Packaging materials of LEDs | 第25-26页 |
·Structure of white LEDs | 第26-28页 |
·Color temperature | 第28-30页 |
·The status quo for study on light efficiency and color temperature of high power LEDs | 第30-32页 |
·Research significance and content | 第32-34页 |
Experimental Materials and Methods | 第34-40页 |
·Experimental materials | 第34-36页 |
·Phosphor | 第34-35页 |
·Organic silicon casting glue | 第35页 |
·Chip | 第35-36页 |
·Experimental apparatus and equipment | 第36页 |
·Property characterization | 第36-40页 |
·X-ray diffracted ray (XRD) | 第36-38页 |
·Raman spectroscopy | 第38页 |
·Text of light efficiency and color temperature of LEDs | 第38-40页 |
Preparation of Phosphor Compound Film and Test on Its Relevant Performance | 第40-53页 |
·Preface | 第40页 |
·XRD phase component analysis of phosphor | 第40-42页 |
·Preparation of phosphor compound film | 第42-44页 |
·Dispersion uniformity of phosphor | 第44-48页 |
·Phosphor sedimentation | 第45页 |
·Particle agglomeration of phosphor | 第45-48页 |
·Optical metallographic observe of phosphor compound film | 第48-49页 |
·Raman spectrum analysis of phosphor compound film | 第49-51页 |
·Chapter summary | 第51-53页 |
Packaging and Performance Test of LEDs | 第53-70页 |
·Preface | 第53-54页 |
·Light reflector | 第54页 |
·Structure and packaging flow of LEDs | 第54-57页 |
·Dispensing | 第54-56页 |
·Packaging structure that phosphor isolates from the chip | 第56-57页 |
·Experimental results and discussion | 第57-68页 |
·Influence of different packaging structures on the light efficiency and color temperature of white LEDs | 第57-59页 |
·Influence of different phosphor on the light efficiency and color temperature of white LEDs | 第59-60页 |
·Influence of phosphor compound film thickness and phosphor concentration on the light efficiency and color temperature of white LEDs | 第60-61页 |
·Influence of the one to add the red phosphor on the light efficiency and color temperature of white LEDs | 第61-65页 |
·Influence of material of light reflector on the light efficiency and color temperature of white LEDs | 第65-67页 |
·Influence of material of light reflector on the light efficiency and color temperature of white LEDs | 第67-68页 |
·Chapter summary | 第68-70页 |
Conclusion | 第70-72页 |
References | 第72-75页 |