历史资料：日期、报道观点、资质和数据保留原发布语境，不表示当前状态。Historical archive: dates, reported views, qualifications and figures retain their original context and do not represent current status.
白色LED不久或将实现200lm/W这一史上最高的效率和价格低于荧光灯、接近白炽灯泡的最低价位。任何设备、任何地点都可利用LED照明的时代即将到来。White LEDs may soon achieve a record efficacy of 200 lm/W and prices lower than fluorescent lamps and approaching those of incandescent bulbs. An era in which LED lighting can be used in any device and any location is drawing near.
受2011年3月11日东日本地震和海啸的影响，日本的关东地区和东北地区出现了严重的电力不足。为代替停运的核电站发电，对新发电设备的需求日益高涨，同时，控制电力消费也成了紧迫课题。Following the Great East Japan Earthquake and tsunami of March 11, 2011, Japan's Kanto and Tohoku regions experienced severe electricity shortages. Demand for new generating equipment to replace shut-down nuclear power stations has been rising, while limiting electricity consumption has also become an urgent task.
其中，作为具有速效性的举措而备受关注的是照明的“LED化”。照明占日本整体用电量的约2成。LED化是指通过采用能源效率较高的LED照明降低这一用电比例。One measure attracting particular attention for its immediate effects is the conversion of lighting to LEDs. Lighting accounts for about 20% of Japan's total electricity consumption. The switch to LEDs aims to reduce that share by using more energy-efficient lighting.
LED化的活跃动向还表现在数字上。例如，GfK Marketing Services Japan发布的资料显示，2011年3月中旬以后，日本国内的LED灯泡销量迅速增加。2011年4月的第二周，LED灯泡在所有灯泡中所占的比例按数量计算为27.1％，按金额计算为67.0％，均创下了历史最高记录。尤其是在出现电力不足的关东甲信越地区，本周的销量比上年增加了182.1％，大幅高于全国平均增长的120.4％。The growing activity is also evident in the figures. Data released by GfK Marketing Services Japan, for example, show that domestic sales of LED bulbs increased rapidly after mid-March 2011. In the second week of April 2011, LEDs accounted for 27.1% of all bulb sales by volume and 67.0% by value, both record highs. In the Kanto-Koshinetsu region, which faced electricity shortages, sales that week rose by 182.1% year on year, substantially above the national average increase of 120.4%.
各企业也在积极导入LED照明。例如，Seven-Eleven Japan计划从2011年5月开始，陆续将该公司主要位于东京电力管辖范围内的约5000家便利店店铺的店内照明器具和店面招牌更换为LED。Companies are also actively adopting LED lighting. Seven-Eleven Japan, for example, plans to begin replacing interior lighting and storefront signs with LEDs from May 2011 at approximately 5,000 convenience stores, mainly within Tokyo Electric Power Company's service area.
“销量达到上年的3～4倍”'Sales are three to four times the previous year's level'
照明的LED化并不是从现在才开始的。导入LED照明的不仅有日本，世界各地都在行动。这是因为，LED照明器具配备的白色LED的寿命为4万多小时，约为荧光灯的4倍，更换频率较低，而且还具有耗电量只有荧光灯的10～40％等优点。尤其是在日本，为了应对2010年4月实施的《修正节能法》，导入LED照明的企业不断增加。LED厂商的照明用途白色LED的供货量大幅增加，西铁城电子有关什么表示，2010年的供货量达到了上年的3～4倍。The conversion to LED lighting did not begin only now. LED lighting is being adopted around the world, not just in Japan. White LEDs used in lighting fixtures have lifetimes exceeding 40,000 hours, about four times those of fluorescent lamps, require less frequent replacement, and consume only 10–40% as much electricity as fluorescent lamps. In Japan in particular, more companies have introduced LED lighting in response to the revised Energy Conservation Act, which took effect in April 2010. LED manufacturers' shipments of white LEDs for lighting have increased sharply. A Citizen Electronics representative said that shipments in 2010 were three to four times the previous year's level.
推动实现LED化的，是白色LED价格的降低。此前，白色LED的价格一直比白炽灯泡和荧光灯等已有光源要高。单位光通量的单价（亮度的单价）在只有路灯等部分照明使用白色LED的2005年为10日元/lm左右。这远远高于白炽灯泡的0.1～0.2日元/lm和荧光灯的0.3～0.6日元/lm的价位。不过，白色LED的亮度单价在以年均30％以上的速度下降，进入2011年后，业界平均降到了约0.7日元/lm。面向大客户的价格为0.4～0.5日元/lm，已经逼近荧光灯。（文/日经BP社）Falling white LED prices are driving this transition. Previously, white LEDs cost more than established light sources such as incandescent bulbs and fluorescent lamps. In 2005, when white LEDs were used only for a limited range of lighting applications such as streetlights, the price per unit of luminous flux was about ¥10/lm. That was far above ¥0.1–0.2/lm for incandescent bulbs and ¥0.3–0.6/lm for fluorescent lamps. However, the price of white LEDs per unit of light output has fallen by more than 30% annually on average. By 2011, the industry average had dropped to approximately ¥0.7/lm, with prices for major customers at ¥0.4–0.5/lm, close to fluorescent lamps. (Source: Nikkei BP.)