The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of Wall Blackening Reason in Ceramic Metal Halide Lamp by Shape of Arc-tube and Degradation Condition

방전관 형태 및 열화 조건에 따른 세라믹 메탈할라이드 램프의 흑화원인 분석

  • 김우영 (원광대학교 정보통신학과) ;
  • 이세일 (원광대학교 정보통신학과) ;
  • 양종경 (원광대학교 전자재료학과) ;
  • 정영기 (원광대학교 정보통신학과) ;
  • 박대희 (원광대학교 전기전자 및 정보공학부)
  • Received : 2010.11.02
  • Accepted : 2010.11.11
  • Published : 2010.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

In order to analyze the reason of wall blackening, which affect the decline of lifetime in a ceramic metal halide lamp, we carried out the deterioration of ceramic tubes by a change in operating conditions with arc tubes of two types of spherical and cylindrical, and we have confirmed the cause of wall blackening through the analysis of element composition and spectrum from SEM/EDS and spectrum analyzer. Wall blackening of tungsten was shown by sputtering from ignition in 20 minute on/off condition and wall blackening from chemical reaction between PCA wall and rare earth halides was shown significantly in a condition without on/off test. Especially, the wall blackening and the decline of luminous flux were reduced by inner convection in spherical type arc tube. Moreover, the color temperature and color coordinate were changed by reduction of emission spectrum of Dy which causes the chemical reaction with PCA wall.

Keywords

References

  1. Honda Jiro, "Technical Review on the Ceramic Metal Halide Lamps", J. Illum. Engng. Inst. Jpn. Vol. 90 No. 1, pp. 10-12, 2006.
  2. 이주호, 양종경, 김남군, 장혁진, 박대희, "세라믹 메탈할라이드 램프의 아크튜브 구조에 따른 광학적 특성", Trans. KIEE. Vol. 57 No. 12, pp. 2244-2248, 2008.
  3. D.H.J. van Casteren, J.L. Duarte, M.A.M. Hendrix, "Physics based MATLAB model for ceramic metal halide lamps", Industry Applications Conference 41st IAS Annual Meeting, pp. 1391-1396. 2006.
  4. 김남군, 양종경, 이주호, 장혁진, "세라믹 메탈할라이드 램프의 전자식 안정기 구동을 통한 전기적 광학적 특성에 관한 연구", Trans. KIEE. Vol. 57 No. 12, pp. 2238-2243, 2008.
  5. Mucklejohn. S.A., Preston B., "Low Wattage metal halide lamps with ceramic arctubes 1980 to 2000", Electrical Discharges for Lighting, Seminar, 1999.
  6. W W Stoffels, T Nimalasuriya, A J Flikweert and H C J Mulders, "Discharges for lighting", Plasma Phys.Control. Fusion 49, pp. 505-512, 2007. https://doi.org/10.1088/0741-3335/49/12B/S48
  7. K.Takatsu, J. Illum. Engng. Inst. Jpn. (in Japanese), 174, 601, 1990.
  8. S. Inoue, T. Kasuya, M. Wada, S. Gotoh, "Wall blacking of a fluorescent lamp by a short duration turn-on/turn-off operation", LS-WLED Conference, 2010.
  9. 황하청, "LCD 백라이트용 형광램프의 흑화현상에 관한 연구", 광운대학교 대학원 전자물리학과 석사학위논문, 2009.
  10. Junming Tu, "Influence of Mount Structure on Performance of Ceramic Metal Halide Lamps", IEEE Transactions on Industry Applications, Vol. 44, No. 6, November /December, 2009.
  11. Yuji Shata, Toshiro Kasuya, Yasuyuki Kimura, Shigeo Gotoh, Motoi Wada, "Study on the Wall Blackening of a High Intensity Discharge Lamp", J. Plasma Fusion Res. SERIES, Vol. 8, pp. 1313-1316, 2009.
  12. Kumi Okazaki, Shigeo Gotoh, Toshiro Kasuya, and Motoi Wada, "Degradation of Light Tubes in Ceramic Metal Halide Lamps due to Short Duration Discharge Cycles", The Science and Engineering Review of Doshisha University, Vol. 48, No. 2, July 2007.