Power consumption reduced by 41% IDEC new buildings all use LED lighting

IDEC completed in March 6, 2008 all of the lighting equipment using LED's new building, "IDEC SALES OFFICE" 12 to the media on March (Figure 1). Outside the office, corridors, conference rooms, exhibition rooms and toilets and other indoor lighting, car parks and outdoor lighting also used LED (Figure 2). Earlier there had been part of the indoor lighting using LED precedent, all of the construction of the LED lighting is the world's first (the company's chairman and chairman of the board of directors Ki Toshino). The new building area of about 2378m2. It is responsible for the design and construction of the Kajima construction calculation, compared with the use of fluorescent lamp and incandescent lamp and other original lighting appliances, the total power consumption can be reduced by about 41% per year (Figure 3).

Figure 1 new architectural appearance

Figure 2 (a) bedroom lighting

Figure 2 (b) lighting in the exhibition room

Although it can reduce power consumption, but the initial cost of LED lighting up to about 35 million yen, is the use of fluorescent lamps and incandescent lamps and other original lighting (about 1300 ~ 15 million yen) more than. However, due to save electricity, by reducing the power consumption can be also used for 13 hours per day, 240 days per year, to about 16 years to replace, so in Fourteenth years, the cumulative cost will be lower than the use of fluorescent lamp. In the initial cost of LED lighting, the majority of the cost of white LED. IDEC is expected in the future, can be used for high power white LED lighting production, then the cumulative cost of less than the time of the fluorescent lamp will be greatly reduced. The company's data show that if the initial cost down to about 1.3 times the use of fluorescent lamps, the cumulative cost of about 4 years will be lower than the use of fluorescent lamps.

The whole building uses about 11 thousand white LED

Use the lighting LED IDEC optics (IDEC Opto Device) LED IDEC Sunshine "made of white". And also used this white LED is known as the SA level of the most advanced products. White LED specifications for the input 3.3W power, the beam is 285lm, luminous efficiency of 86.4lm/W (color temperature of 6000K, continuous use). The whole building uses about 11 thousand white LED. IDEC optical components that can be used for ordinary white LED lighting era is coming, and released 3 years ago, IDEC Sunshine. Although the supply is increasing, but the white LED lighting market did not grow as expected. IDEC pointed out that one of the reasons is that a large number of examples of the use of LED lighting is too small to verify the effectiveness of LED lighting, not enough. Therefore, the company plans to verify the effectiveness of LED lighting through the new building. At the same time, the accumulation of LED will be used for lighting experience, "as a practical technology of the factory" (IDEC executive director of technical strategy in charge of Technology Minister IDEC group CTO Fujita Junko). Alternate use of 6000K and 3300K type products built within the LED lighting with a variety of models. For example, in the office, conference room and corridor place "is adopted as the font" lighting (Figure 4). Alternating with a total of 20 color temperature of 6000K white LED and 3300K warm white LED. In this way, "it will be equivalent to about 4500K day white, beneficial to the eyes of the human light" (IDEC optical components on behalf of the president of the board of directors Tada Stomu). The power consumption of the LED lighting appliance is 66W, and the total efficiency of the optical beam is 4300lm, including the power supply, which is 65lm/W. This kind of lighting is made and equipped with 293 units. In the bedroom, around the brightness to ensure around 700lx. The use of the IDEC Sunshine integrated in a package of 27 small blue LED chip, and through the combination of fluorescent materials and get white light. TOYOTA blue chip from LED synthesis, and then packaged by IDEC optical components. The company as a new generation of products, will be available in the summer of 2008 will be 55 LED chips packaged in a chip in the product. 920lm can be obtained when the power input is about 11W (continuous use) beam, 2W power input to 118lm/W luminous efficiency (bonding temperature continued to use, for 40 ~ 50 DEG C)

Source: Nikkei BP