Light Sources and Ballast Circuits

According to the machinery statistics by Ministry of Economy, Trade and Industry (METI), the total of domestic light bulb production in 2006 was 1,101 million (88.5% year-on-year). Production for general purpose illumination light bulbs and halogen light bulbs accounted for 122 million (99.2% y/y) and 45 million (96.3% y/y), respectively. The total of fluorescent lamp production was 988 million (114.9%) and the production of general purpose fluorescent lamps excluding backlights accounted for 367 million (101.7% y/y). Further, HID lamp production was 10 million (106.3% y/y). What is noteworthy regarding such lamp production is that, similar to the previous year, the sales volume (amount) of lamps for general illumination exceeded 100% against the previous year, indicating a steady shift to high value added products. Major lighting exhibitions in 2006 included the Light + Building Trade Fair held in Frankfurt in April and the Light Fair International 2006 held in Las Vegas, U.S.A. in May, both of which demonstrated signs of acceleration toward energy saving, high efficiency and resource saving. As for incandescent lamps, products filled with larger atomic weight gases aiming at higher efficiency/longer life are becoming the mainstream. As for new technologies, it was experimentally demonstrated that infrared radiation can be suppressed by processing micro cavities to metal plates made of tungsten, tantalum, etc. For fluorescent lamps, straight and circular fluorescent lamps achieving a longer life/higher luminous flux maintenance factor continued to be widely developed/launched again this year. For compact fluorescent lamps, energy saving/high efficiency products, multifunctional type products combined with LED and new shaped products were launched. As to HID lamps, ceramic metal halide lamps with high efficiency, improved color rendering, longer life and higher luminous flux maintenance factor were commercialized one after another. Numerous studies and analyses, on discharge models were reported. Further, studies on ultra high-pressure mercury lamps as light sources for projectors are becoming the mainstream of HID lamp related researches. For high-pressure sodium lamps, many studies on plant growing and pest control utilizing low insect attracting aspects were also reported in 2006. Additionally, for discharge lamps, the minimum sustaining electric power for arc tubes employed in electrode-less compact fluorescent lamps was investigated. For Hg-free rare-gas fluorescent lamps, a luminance of 10,000cd/m2 was attained by a 1 meter-long external duplex spiral electrode prototype using Xe/Ne barrier discharge. As to startup circuits, the commercialization of energy saving and high value added products mainly associated with fluorescent lamps and HID lamps are becoming common. Further, the miniaturization of startup circuits for self electronic-ballasted lamps has advanced. Speaking of the overall light sources and startup circuits in 2006 and with the enforcement of RoHS in Europe in July, the momentum toward hazardous substance-free and energy saving initiatives has been enhanced from the perspective of protecting the global environment. It is anticipated that similar restrictions will be globally enforced in the future.

[2]  Cheng Sun,et al.  Degradation of atrazine by microwave-assisted electrodeless discharge mercury lamp in aqueous solution. , 2006, Journal of hazardous materials.

[3]  R.-L. Lin,et al.  Electronic ballast for fluorescent lamps with phase-locked loop control scheme , 2006, IEEE Transactions on Power Electronics.

[4]  Tamotsu Ikeda.  Transmission System for ISDB-T/sub SB/ (Digital Terrestrial Sound Broadcasting) , 2006, Proceedings of the IEEE.

[5]  G. Kroesen,et al.  Metal halide lamps: Gravitational influence on color separation , 2006 .

[6]  A.J. Calleja,et al.  New control strategy in a square-wave inverter for low wattage metal halide lamp supply to avoid acoustic resonances , 2006, IEEE Transactions on Power Electronics.

[7]  J. Heberlein,et al.  Arc attachment at HID anodes: measurements and interpretation , 2006 .

[8]  K. Martus,et al.  Collisional and radiative processes in high-pressure Ne/N2 discharges , 2006 .

[9]  D. Manos,et al.  Analysis and kinetic model of a high-pressure KrI excimer emission in a novel capacitively coupled rf lamp , 2006 .

[10]  Jong-Pil Jegal,et al.  Self-expanded microcapillary positive column for highly efficient vacuum ultraviolet sources , 2006 .

[11]  V. Tarasenko,et al.  Afterglow emission from xenon, krypton, and argon dimers in nanosecond volume discharge at elevated pressures , 2006 .

[12]  Agoston Boroczki,et al.  High temperature reactions between molybdenum and metal halides , 2006 .

[13]  J. G. Polihronov,et al.  Absorption and emission of light in spark-processed silicon , 2006 .

[14]  J. Arau,et al.  High-efficient integrated electronic ballast for compact fluorescent lamps , 2006, IEEE Transactions on Power Electronics.

[15]  Michael Sivak,et al.  Mercury-free HID headlamps: glare and colour rendering , 2004 .

[16]  Viktor F Tarasenko,et al.  XeCl-, KrCl-, XeBr- and KrBr-excilamps of the barrier discharge with the nanosecond pulse duration of radiation , 2006 .

[17]  A. N. Panchenko,et al.  LASER APPLICATIONS AND OTHER TOPICS IN QUANTUM ELECTRONICS: Planar excilamp on rare gas chlorides pumped by a transverse self-sustained discharge , 2006 .

[18]  Yasumitsu Miyazaki,et al.  Recent Trend of Electromagnetic Theory in Advanced Technology and Society , 2006 .

[19]  A. Malinin,et al.  Characteristics of a high-frequency barrier discharge in mixtures of mercury diiodide vapor with gases , 2006 .

[20]  J. Qu,et al.  Microwave electrodeless lamp photolytic degradation of acid orange 7 , 2006 .

[21]  Mei Zhang,et al.  Spark light radiation coupled with the field electron emission from carbon nanotube forests , 2006 .

[22]  Chang-Chun Zhu,et al.  Field-emission lighting tube with CNT film cathode , 2006, Microelectron. J..

[23]  A. Lisenko,et al.  A windowless VUV excilamp , 2006 .

[24]  Qi-Bin Zhou,et al.  Analysis of Lightning-induced Impulse Magnetic Fields in the Building with an Insulated Down Conductor , 2006 .

[25]  Won-Sup Chung,et al.  A New Dimming Algorithm for the Electrodeless Fluorescent Lamps , 2006, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

[26]  J. Marcos Alonso,et al.  Low cost electronic ballast for a 36-W fluorescent lamp based on a current-mode-controlled boost inverter for a 120-V DC bus power distribution , 2006, IEEE Transactions on Power Electronics.

[27]  Yu-Kang Lo,et al.  High-Frequency Dimmable Electronic Ballast for HID Lamps , 2006, IEEE Transactions on Power Electronics.

[28]  Tsai-Fu Wu,et al.  Multiphase driving system for LCD back-light lamps with current balancing feature , 2006 .

[29]  V. Skakun,et al.  A high-power xenon dimer excilamp , 2006 .

[30]  Ronny Brandenburg,et al.  Comparative study of diffuse barrier discharges in neon and helium , 2006 .

[31]  Katsunori Shida.  Recent Technical Trend of Instrumentation and Measurement , 2006 .

[32]  Z. Mi,et al.  Electrically Injected Quantum-Dot Photonic Crystal Microcavity Light-Emitting Arrays With Air-Bridge Contacts , 2006, IEEE Photonics Technology Letters.

[33]  A. Ferreira,et al.  Microwave-assisted photo-Fenton decomposition of chlorfenvinphos and cypermethrin in residual water , 2007 .

[34]  M. Haverlag,et al.  Optical emission spectroscopy of metal-halide lamps: Radially resolved atomic state distribution functions of Dy and Hg , 2006 .

[35]  O. Kermarrec,et al.  Probing photonic crystals on silicon-on-insulator with Ge/Si self-assembled islands as an internal source , 2006 .

[36]  M. Jinno,et al.  A New-type of Xenon-Neon Barrier Discharge Fluorescent Lamps : Double Helical External Electrodes Lamp (DHEL)( Light Sources Workshop, 2005 (1)) , 2006 .

[37]  A. Flikweert,et al.  Metal halide lamps in the international space station ISS , 2006 .

[38]  H. Ko,et al.  Plasma illumination devices enhanced by carbon nanotubes , 2006 .

[39]  A. Shuaibov,et al.  Shortwave krypton-bromine excimer low-pressure lamp , 2006 .

[40]  Shu Yuen Ron Hui,et al.  Experimental study on acoustic resonance phenomena in ageing high-intensity discharge lamps , 2006 .

[41]  H. Tam,et al.  Isotropic photonic bandgap in Penrose textured metallic mircocavity , 2006 .

[42]  A. Hartgers,et al.  Demixing in a metal halide lamp, results from modelling , 2006 .

[43]  I. Maros,et al.  High-efficiency dielectric barrier Xe discharge lamp: theoretical and experimental investigations , 2006 .

[44]  Sang Kyung Kim,et al.  A Low-Cost High-Efficiency CCFL Inverter With New Capacitive Sensing and Control , 2006, IEEE Transactions on Power Electronics.

[45]  E.A.A. Coelho,et al.  A high power factor ballast using a single switch with both power stages integrated , 2006, IEEE Transactions on Power Electronics.

[46]  E. Statnic,et al.  Investigation of the electrical discharge parameters in electrodeless inductive lamps with a re-entrant coupler and magnetic core , 2006 .

[47]  M. Hayakawa,et al.  The Importance of Direction Finding Technique for the Study of VLF/ELF Sferics and Whistlers , 2006 .

[48]  A. Flikweert,et al.  Axial segregation in metal–halide lamps under varying gravity conditions during parabolic flights , 2006 .

[49]  Chun-An Cheng,et al.  Design and implementation of frequency-modulated electronic ballast for metal-halide lamps , 2006 .

[50]  M. Jinno,et al.  Optimal Pulse Voltage Waveform for a Xenon Barrier Discharge Lamp using both an Inner Electrode and an External Electrode , 2006 .