完整後設資料紀錄
DC 欄位語言
dc.contributor.authorWu, Chi-Shouen_US
dc.contributor.authorChen, Kuan-Yuen_US
dc.contributor.authorLee, Xuan-Haoen_US
dc.contributor.authorLin, Shih-Kangen_US
dc.contributor.authorSun, Ching-Cherngen_US
dc.contributor.authorCai, Jhih-Youen_US
dc.contributor.authorYang, Tsung-Hsunen_US
dc.contributor.authorYu, Yeh-Weien_US
dc.date.accessioned2020-01-02T00:04:22Z-
dc.date.available2020-01-02T00:04:22Z-
dc.date.issued2019-10-01en_US
dc.identifier.issn2073-4352en_US
dc.identifier.urihttp://dx.doi.org/10.3390/cryst9100524en_US
dc.identifier.urihttp://hdl.handle.net/11536/153403-
dc.description.abstractWe designed a spot light system with an illumination range of 10 km. In the designed system, an appropriate white light-emitting diode (LED) was selected according to the exitance and injection power required. Subsequently, through a first-order optical design, the geometry of the lens and reflector was determined using geometrical calculation. Because the central illuminance of the projection spot of the reflector was 2.5 times that of the cover lens, we first considered the fabrication error of the reflector. According to the adjustment of the optimized distance between the white LED and reflector, we modified the design of the cover lens to fit the new location of the white LED. An LED spot light module containing 16 spot light units was used. The module's power injection was only 68.2 W. Because of the excellent performance of the designed system in terms of the divergence angle of the projection beam and maximum luminous intensity, which were 1.6 degrees and 2,840,000 cd, respectively, the projection distance of the LED spot light module was 3.37 Km, according to the ANSI regulation. Finally, a spot light system with nine modules and capable of achieving a projection distance of 10 km was successfully fabricated.en_US
dc.language.isoen_USen_US
dc.subjectwhite LEDen_US
dc.subjectlong-distance projectionen_US
dc.subjectexitanceen_US
dc.subjectspot lighten_US
dc.titleDesign of an LED Spot Light System with a Projection Distance of 10 kmen_US
dc.typeArticleen_US
dc.identifier.doi10.3390/cryst9100524en_US
dc.identifier.journalCRYSTALSen_US
dc.citation.volume9en_US
dc.citation.issue10en_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department電子物理學系zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.identifier.wosnumberWOS:000498263500039en_US
dc.citation.woscount0en_US
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