Analysis of Performance on Asymmetric LED Lens Design Using Three-Dimensional Free-Form Surface Expression (3차원 자유곡면식을 이용한 LED 비대칭 렌즈 설계 및 성능 비교 분석)
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- Journal of the Korean Society of Manufacturing Technology Engineers
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- v.26 no.3
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- pp.328-336
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- 2017