Small white LED cheaper costs fall by half

White light-emitting diode (LED) light emitting efficiency when it can achieve 100lm/W, and more than fluorescent lamps in terms of power consumption? For a long time the issue of concern has finally ushered in the time to solve. Because Nichia chemical industries will soon be 06 years from June began to supply samples for 100lm/W luminous efficiency of white LED. It is reported that mass production will begin in December.

100lm/W, which is comparable to the fluorescent light emitting efficiency of higher varieties of indicators. Although there have been higher than the white LED report on the 100lm/W, but the launch of 100lm/W products is still the first time.

100lm/W not only has the ability to achieve a Nichia chemical industries. Estimated to 06 years to the beginning of the year to 07, 100lm/W products will be listed. For example, CITIZEN Citizen (Electronics) product planning, 06 years will produce 90lm/W products, 100lm/W products will debut in 07 years. Due to the intense competition in the white LED industry, other LED manufacturers will also be expected to follow up the launch of 100lm/W products. The first step than other companies launched Nichia chemical industrial products announced the completion of development, 150lm/W products in 07 years before and after the efficient competition in a period of time will not stop.

A year ago, when it comes to the high luminous efficiency of white LED varieties, only about 60lm/W. But in terms of actual brightness, and fluorescent lamps have roughly the same. This is because, unlike the full range of light emitting light, the white LED is fired only in front. Now, due to the white LED to achieve the 100lm/W, so the luminous efficiency should be said to have exceeded the fluorescent lamp.

With the increase of luminous efficiency of white LED, the use is also increasing. From the "display" to the "white" to "illuminate" the object, in the setting of the place, from public space to the development of more and more personal space. For example, lighting lamps and lanterns, Matsushita electrician using LED as a Design Apartments (Designers Mansion) lighting products have been well received. In the aspect of vehicle equipment, we can see a lot of application examples in the back light and indoor lighting. Headlights with white LED car will be listed in 07 years, TOYOTA held in April 06 New York Auto Show (New York International Auto Show) on display, and limousine "plan 07 year spring listed Lexus brand LS600hL on the use of white LED as near light headlamp.

In 05 years, people's general view is that the market began to appear on the white LED 100lm/W commodity was also the first to get to the past 07 years to 08 years. The actual situation is ahead of more than 1 years, some people think that one of the reasons is not only the technology development competition fiery, but also to deal with the sharp decline in the price of this reason. Small power (0.1W) white LED price point of view, the 03 quarter of first is about $65. To the same period of 04 years, about 54 yen, about 40 yen in, then fell to less than 30 yen in 06 years. In 3 years the price fell to less than half.

South Korea and Taiwan manufacturers manufacturers to enter the market brought a sharp decline in prices, the future can be predicted China manufacturers varieties will further increase, likely in the low-cost white LED at top speed on the road. On the old white LED manufacturers, only through the improvement of luminous efficiency, high value-added products to curb price decline, but also access to new means of lighting equipment and vehicle equipment market. These factors also play a positive role in the high luminous efficiency of white LED.

Whether it is the average unit price of white LED continued to decline, or a part of the strength of the manufacturers to launch light-emitting efficiency of high-end products 100lm/W, as the user's equipment manufacturers are gratifying things. In either case, the unit price per 1lm beam (lm/ yen) is declining. In order to reduce the fluorescent lamp and the incandescent lamp 10 times, in the headlights use high iodine tungsten lamp and HID lamp is nearly 2 times the price of high white LED lighting devices in use, it is necessary to further reduce the price and improve the luminous efficiency.

However, it was also suggested that in order to be widely used in lighting and vehicle use and other aspects of white LED, only the price decline is not enough. For example, there must be a way to suppress the power loss in the power circuit used to drive white LED. The power conversion efficiency of the small power white LED power supply circuit used in the back light of the mobile phone is about 90%, while the high power white LED for lighting purposes is currently only up to about 80%. In the fluorescent lamp, the power conversion efficiency of the power supply circuit is more than 90%. In other words, the loss of power supply circuit is still 2 times the gap. The use of high-power white LED, the need to invest large current, but also the need for high heat dissipation of the printed circuit board. Easy to install white LED on the device is also very critical.