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둥근형 무전극 램프의 페라이트 코어와 냉점의 온도 의존성
金南君(Nam-Goon Kim),梁種璟(Jong-Kyung Yang),李鐘燦(Jong-Chan Lee),韓后錫(Hoo-sek Han),朴志植(Jee-Sik Park),朴大熙(Dae-Hee Park) 대한전기학회 2008 전기학회논문지 Vol.57 No.5
Generally Lighting system consists of lamp and luminaire. When a fluorescent lamp is installed in luminaire, power and light output is changed by ambient temperature. Particularly electrodeless lamp depends on the changes that are mercury pressure with amalgam temperature and magnetic properties with ferrite temperature. It has finally influence on optical efficiency In this study, the temperature change of ferrite and cold spot, vessel are measured at transitional state and then same characteristics are measured with increase of ambient temperature. At transitional state, luminous flux is related to temperature change of cold spot that compare with behavior of mercury pressure and light output. At increase of ambient temperature, we analyzed change that efficiency and electrical, optical characteristics of elecrodeless lamp are related to ferrite core and cold spot temperature. Additionally, spectrum, color temperature and coordination are measured to check that is relation with ambient temperature.