The theory of LED technology difficult and important focuses on solid state lighting infrastructure construction

"Construction of new infrastructure for solid state lighting, the technical personnel is a major task in the future". Japan Yamaguchi University Graduate Institute of Polytechnic Institute director Professor Taguchi Toma, in the "2006 LED Seminar (LED Technology Symposium 2006)" said. For a predetermined 300lm/W efficiency limit theory LED 2020, Taguchi in motivating young researchers and technical staff to carry out further research at the same time, the show in order to build new roadmap lighting infrastructure (Roadmap), in the hope that the material and device technology leading Japan to participate in the cooperation and become a leader.

Taguchi pointed out that, as a high output roadmap, the goal is to achieve 100lm/W before 2010, before 2015 to achieve 200lm/W, before 2020 to achieve 300lm/W. In addition, to improve the quality of color rendering and to ensure safety, but also to achieve solid lighting with LED necessary.

Taguchi said that the theoretical study of lighting solid technology is difficult and important areas. Because of the angular dependence of LED in the photometric distribution, it is impossible to analyze the illumination engineering with incandescent bulbs and fluorescent lamps.

In addition, with LCD panel backlight, for lighting illuminate the object, color is very important in the use of red (R), green (G) and blue (B) color phosphor fluorescent type white LED white light, the object of comparative aesthetics. Taguchi said: "now has a very good phosphor." And lit a trial in April, the use of R15 color rendering of 96 RGB fluorescent white LED lamp. About the LED, scheduled to be released at an international conference in August.

In addition, Taguchi was introduced in November 2007 26 ~ 30 in Tokyo Pacific Hotel (Le Meridien Pacific Tokyo, held, Shinagawa) to discuss the problems of using LED lighting field "the first International Conference on solid white LED lighting.". The International Conference on the field was held in Japan for the first time. Organizers for the Japan Society of lighting, CO sponsored by the Japan Society for the promotion of science and technology photoelectric conversion 125 committee. Details and submission guidelines are scheduled to be published on the website of the lighting society after July.