한국해양대학교

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고광도 탐조등 개발을 위한 LED 집광 기술에 관한 연구

Title
고광도 탐조등 개발을 위한 LED 집광 기술에 관한 연구
Alternative Title
A Study on the Light Condensing Technology of LED for Development of a High Luminous Intensity Searchlight
Author(s)
김진욱
Publication Year
2015
Publisher
한국해양대학교
URI
http://kmou.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000002174574
http://repository.kmou.ac.kr/handle/2014.oak/8624
Abstract
This thesis dealt with the condensing technology of LED(Light Emitting Diode) light using a parabolic reflector to develop a LED searchlight to replace a 1kW xenon searchlight. A simulation was conducted to analyze the influence of the diameter of the reflector and the size of the light source on the light condensing. A combination of the parabolic reflector with a diameter of 620mm and a focal length of 220mm, and a LED package with a diameter of 9mm showed the narrowest beam angle.

The proposed light condensing system consists of a 95W MCP(Multi Chip Package) type LED with total luminous flux of 7,800lm, a parabolic reflector, a heatsink and a water cooler. The center luminous intensity was measured 7.7×106cd. The distance between the light source and the point where the illumination intensity was 1lx was calculated to be 2.8km. The power consumption of the system was 95W, only 9.5% in comparison with the 1kW xenon searchlight, and the beam angle was 1°, resulting improved light condensing efficiency.

In this thesis, a reflector with a diameter of 620mm was applied, but it is that a compact LED searchlight with a diameter up to 280mm can be developed by considering the curvature radius of the parabolic reflector.
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전기전자공학과 > Thesis
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000002174574.pdf Download

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