Likeylighting

And holding (Group) Co. Ltd. (Tokyo Chiyoda outside Kanda 4 chome 14 times 1, registered capital: 36 billion 400 million yen Chairman: Yamada Jeonwoong) subsidiary and Electronic Technology Co. Ltd. (address with registered capital: 1 billion yen Chairman: Otsuka Aki), the successful development of the center wavelength of the 310nm band, reached up to 90mW the output power level of the world's leading 1mm * 1mm deep UV LED chip. Deep ultraviolet (UVB) in the 310nm band is widely used in the fields of resin coating hardening and skin treatment. With the change of traditional light sources such as mercury lamp and excimer lamp to LED, the future may be non mercury, the direction of the development of portable equipment. And, because of the advantages of long life, power saving and so on, we are looking forward to the breakthrough in more applications.                         ♦ 310nm band deep UV LED chip With the combina...

FAIZ RAHMAN of the University of Ohio, Ohio, believes switching from LEDs to lasers for phosphor-pumped white light sources increases efficiency, extends lifetime and produces highly collimated beams. Currently, laser sources are based on semi-polar GaN laser diodes and incorporate advanced phosphor technology. As the laser focuses on a tiny spot on the phosphor that emits light and converts it to white light, the light source can output safe and highly collimated white light. Laser-based methods, whose properties include a much higher temperature rise than LEDs. Laser pumping is also practical because devices that emit in the near ultraviolet are readily available and can function effectively. The process of moving from LED to laser does not happen overnight. In contrast, LED-based luminaires will remain the primary means of generating white light for the foreseeable future. However, laser diode-based solid-state lighting systems have found application in high-brightness lighting...