White LED lighting Toshiba unique

Toshiba lighting technology company in the lighting show (4 ~ 7) held in Tokyo, Bigsight display on the use of white light-emitting diodes (LED) for indoor lighting room. "We want to make it clear that the current commercial white LEDs are bright enough to be used for lighting," said the company's commentator.

Figure 1: office lighting with daylight white LED

Figure 2: the living room is the use of incandescent color the company's display is the use of day light and color lighting office and the use of incandescent living room. 6500 white LEDs (Figure 1) are installed on the ceiling for office lighting. These diodes are mounted in 5 templates (400mm * 400mm), each containing 1300. The white light emitting diode is a fluorescent material which is added on the blue light emitting diode to convert blue light to yellow light. Because of the low brightness of the red light, it appears to be a slightly bluish white light. A total of 1440 white LEDs were installed on the ceiling of the incandescent lamp room (Figure 2). There are 360 diodes in the circular template with a diameter less than 300mm, and a total of four templates are used. The template uses a white light emitting diode for improving the red brightness of the fluorescent material. "Although the luminous efficiency of white LEDs is only 2/5 of the fluorescent lamp, and the power consumption of white LEDs at the present stage is larger than that of the fluorescent lamps. But to improve the luminous efficiency of white light emitting diode progress very fast "(the narrator), from 2007 to 2010 to the luminous efficiency of white LEDs and fluorescent lamps will reach the same level or above. (source: Nikkei news agency BP)