| DC 欄位 |
值 |
語言 |
| DC.contributor | 光電科學與工程學系 | zh_TW |
| DC.creator | 鄭佳申 | zh_TW |
| DC.creator | Chia-Shen Cheng | en_US |
| dc.date.accessioned | 2008-7-18T07:39:07Z | |
| dc.date.available | 2008-7-18T07:39:07Z | |
| dc.date.issued | 2008 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=952206048 | |
| dc.contributor.department | 光電科學與工程學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 本論文在研究與比較高功率白光LED在封裝上以半球螢光粉塗佈方式來封裝,以及一般的平面螢光粉塗佈方式LED，兩者在光學設計上的不同與優劣。另外我們將以etendue的理論來分析其被收光的能力，同時設計不同的TIR透鏡以及CPC一階封裝透鏡來進行收光和整光的工作，驗證其被收光及整光的可能性。 | zh_TW |
| dc.description.abstract | In this thesis, we study the characteristic of the etendue for different packages of white LEDs. We compare the etendue of the package with the phosphor formed in a plan structure and the half-ball one. We study the optical efficiency of the second optics such as TIR’’s for both cases. Finally, we design a compound parabolic concentractor to serve as the first optics. The optical efficiency and the result of beam shaping by the CPC is analyzed. | en_US |
| DC.subject | 光學設計 | zh_TW |
| DC.subject | lighting design | en_US |
| DC.title | 白光LED之ㄧ階與二階光學設計 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | The study of first and second optics design of white light LED | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |