LED及其應用技術（簡體書）

The emergence of highbrightness lightemitting diode（HBLED）white light source technology，made possible by the development of blue LEDs in the1990s，is an exemplar of disruptive technology introductionIts promise and potential for delivering lowcost，high efficiency illumination sources，with much improved lifecycle costs（LCC）compared to incumbent technologies，is being realized and it is on course to become the dominant lighting technology in the majority of major lighting sectors，ie，residential，retail，commercial and industrial
The importance of HBLED technology does not derive simply from its advantages as an energy efficient and cost effective alternative to the established thermal and plasma light source technologies，widely referred to now as “legacy” lightingIt is important also because of at least two of its other major characteristicsFirstly，LEDs are simple electronic circuit components enabling them to be incorporated into complex multisensor，multifunction，addressable lighting systems，ie，a basis for “intelligent”lightingSecondly，multiLED systems，with or without the assistance of phosphors，make it possible to realize spectral power distributions（SPDs）of almost arbitrary profile in the nearuv，visible and nearir regionsIn the visible region this latter characteristic makes it possible，for example，to dynamically control the colour temperature of a lit internal space to mimic the diurnal behaviour of daylightImportantly，the ability to design the SPD of sources is highlighting a need for much greater understanding of the interaction of living systems with light，for example，as it relates to human health or to plant growth
Such issues and opportunities deriving from the characteristics of HBLED technology have created a rich，diverse and rapidly growing area of lightingrelated research worldwide to help guide the further，decades long，development of the technology and its applications，including its many nonlighting applicationsHBLED technology may be said to have emerged from its revolutionary development phase to become today an established alternative lighting technology，albeit with a long development path ahead to reach its full potential
This timely and valuable book by Professor Liu Muqing and colleagues from the Institute for Electric Light Sources at Fudan University，made available to me as a machine translation from the original Chinese，takes the opportunity to review the technology as it transitions from revolutionary to evolutionary phases of developmentThe book provides indepth，accessible descriptions of the major constituent parts of LED modules and their underlying design principles，of the driver and control technologies，and of device performance metrologyThe book describes also several of the major application areas of HBLEDs，including nonlighting applicationsAs highlighted in the Foreword by Secretary General Wu Ling，Professor Liu and his colleagues have made significant contributions to LEDlighting applications in ChinaThey have achieved also international recognition because of the LEDrelated research they have presented to major international conferences on lighting science and technology over several decades
The perspective the book provides ensures that it will become a valuable learning and reference resource for：students beginning a career in lighting and related technologies； experienced lighting professionals，including designers and specifiers，who wish to deepen their knowledge of this increasingly important element of their daily work； newcomers to lighting； and anyone with a scientific／technical background with an interest in technological developments，intrigued by the high public／legislative／commercial profile of HBLEDbased solid state lighting（SSL）
China is playing a most important role in the development of HBLED lighting systems both in respect of its world leading productive capacity and，increasingly，in respect of its national research and development activitiesI expect this book，and future editions updated as the technology progresses，to be very well received by the Chinese lighting community


Robin Devonshire
Professor Adjunct，Fudan University，Shanghai（復旦大學客座教授）
Chair，Foundation for the Advancement of Light Source Science and Technology（FASTLS，國電光源委員會主席）
Chair，International Scientific Committee，LS Symposia（國際光源科技研討會，學術委員會主席）

人類的照明技術一直在進步，作為照明物質基礎的電光源經歷了熱輻射光源、氣體放電光源等發展歷程，已經開始步入固態光源時代。LED作為固態照明的主要光源，是照明領域近年來發展的最大亮點，受到國際特別是科技較為發達的政府與產業界的高度重視。一方面技術的進步使LED光效等性能指標快速提高，另一方面性能的快速提高也成就了價格的下降并進入了各種照明市場。中國從2003年開始，通過“十五”、“十一五”、“十二五”計劃，在科技部、發改委等部委及地方政府的持續支持下，LED技術發展日新月異，產業規模持續擴大，其科技與產業等方面都在國際上占有一席之地。
本書對LED產業鏈的上游材料與芯片、中游封裝及下游應用都進行了介紹，特別是下游LED應用技術，更為詳細，包括LED應用的關鍵技術及主要應用領域等；書中也包含了作者的一些觀點與近年來的研究成果。
本書作者來自復旦大學電光源研究所，這是一個在傳統照明領域為我國做出重大貢獻的研究機構，近年來在LED應用領域也取得了很多創新性成果。其中主要作者劉木清作為科技部“十一五”863專家參與了相關國家科技計劃的制訂，為推動我國LED應用技術的發展做出了積極的貢獻。如書中介紹的上海長江隧道LED照明應用，是目前世界上最大的單個LED隧道照明工程，對業界產生了很大影響，基于該隧道的技術規范已成為國家半導體照明工程研發及產業聯盟的技術標準。
中國是照明大國，目前LED產業及應用規模也是全球最大的，特別是從事LED技術及相關產業的人員眾多，希望這本書能夠對LED照明研發和應用的業內人士及對此感興趣的相關人員提供可供借鑒的參考。

國家半導體照明工程研發及產業聯盟秘書長2013年6月