高光效 LED 遠距離投射燈之研究;Study of High-Performance LED Projection Lamp for Long-distance Projection

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/76991

Title:	高光效 LED 遠距離投射燈之研究;Study of High-Performance LED Projection Lamp for Long-distance Projection
Authors:	陳觀宇;Chen, Kuan-Yu
Contributors:	光電科學與工程學系
Keywords:	pcW-LEDs;光展量;等效光通量密度;投射光形;二階光學設計;照射距離;pcW-LEDs;étendue;exitance;projection;secondary optical design;projection distance
Date:	2018-08-22
Issue Date:	2018-08-31 11:55:51 (UTC+8)
Publisher:	國立中央大學
Abstract:	本論文中，我們先以一般市售高功率白光 LED 為光源，分析光源之光學特性，其中包含光源的光展量計算與等效光通量密度分析，並從中評價出最適合遠距離投射光形的照明之光源。此外，本論文提出一種遠距離投射燈具之設計，並搭配二階光學設計與合適的 LED 光源，使該投射光形之光學模組，達到高照射距離的效果。設計結果的模擬評估單一光學模組在驅動功率為5.2 W的條件下，照射角度的半高全寬為1.33°，光學效率為77 % 與光學有效利用率為45.9 %，投射距離可達 1055.5 m。最後以實驗確認設計結果之光學表現後，將光學模組以3x3陣列方式排列製作燈具，成功完成一盞在驅動功率為41.8 W下，其照射距離高達3.1 km的投射燈具。此投射燈具有輕量、節能與成本低廉的優點，預期可應用在邊防、船用或高樓裝飾等照明用途。;In this thesis, we had successfully analyzed optical performance of commercial high-power pcW-LEDs. The analysis included the étendue and exitance of the light sources, and these properties is an indicator for the application of long-distance projection. In addition, we proposed a long-distance projection lamp design with secondary optical components, as well as a proper LED light source to build up an optical module with high optical performance. Under driving power 5.2 watts, the optical module behaves long-distance project, where FWHM of divergence angle were 1.33 degrees, optical efficiency was 77 %, optical utilization factor was 45.9%, and the projection distance was 1055.5 m. Finally, after confirming the design results by experiment, a luminaire with 3×3 modules to produce a projection of distance as long as 3.1 km with driving power of 41.8 watts. The luminaire has several advantages, such as light weight, energy saving and low cost, and is expected to be used in special lighting applications such as border, marine or decoration.
Appears in Collections:	[Graduate Institute of Optics and Photonics] Electronic Thesis & Dissertation

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