[Hui Cong Lighting Network] "Lighting Fair 2009" (March 3-6, 2009, Tokyo Ariake International Convention and Exhibition Center) can be said to be the world of LED lighting. So how do manufacturers who develop LED business from the dawn of the lighting market view this situation? The reporter interviewed Yamada Fan Xiu, vice president of Japan's Philips Lumileds Lighting Japan, about the current status of LEDs for lighting and future technology prospects. (Interviewer: Okubo Satoshi)
——Philips Lumileds Lighting has been engaged in high-power LED business since Lumileds Lighting, LLC. And firmly believe that "solid lighting (Note: LED, etc.) era will come." Please talk about the first impression after visiting this LightingFair.
Yamada: The first impression is "amazing." It can be said that 95% of the products in the venue are LEDs. I feel that the era of LED lighting has finally arrived. The trend to stop production and sales of incandescent lamps in Japan in 2012 is also the result of increasing attention to LED lighting.
Just a few years ago, the luminous efficiency of high-power white LEDs was only about 30 lm/W. It is also in a state of "expecting that one day the LED can reach the same 100 lm/W as the fluorescent lamp". Today, we finally have to usher in a moment when 100lm/W becomes a reality. When our products have reached 350mA input current, the luminous flux is 105~110lm, and the luminous efficiency is close to 100lm/W.
——Please tell us about the price of high power LEDs that can be used for lighting. Your company said, "The ultimate goal is to use LEDs instead of fluorescent lamps as the main lighting fixtures." When will the price of "1 yen / lm or less" be achieved?
Yamada: The current price is quite cheap. The total number of LEDs produced by the company has reached several billion. It can be said that the mass production effect is very good. The period of 1 yen / lm is coming soon. It is estimated that the price of the light source will soon be the same as the fluorescent light.
- But the price of LED lighting is still very high. For example, the bulb type LED lamp is about 10,000 yen.
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