2008-9-27

Japan-based manufacturer TOSHIBA CORP. (TSE:6502) has developed an Led that emits ultraviolet light with 50 per cent higher efficiency than existing versions, opening the door for LEDs that can shed a light quality similar to a fluorescent lamp. The company hopes to use the technology to commercialize as early as 2010 Led lighting capable of replacing fluorescent Lighting.

* Currently available white LEDs are not suited for lighting places like supermarkets and clothing stores because red objects look dark when illuminated under them.

* Toshiba increased the efficiency of its UV LED by placing a thin layer of aluminum nitride between the sapphire substrate and the light-emitting layer of gallium nitride to reduce boundary defects more than tenfold and prevent fissures that lower efficiency.

Source:tradingmarkets.com