When you first put forward the concept of "filament lamp", what do you think of? Is it a huge overseas export market? Or is it a customized lighting demand for nostalgic customers? In fact, when there is a manufacturer who proposes this term, it means The birth of a new market segment. The emergence of the filament lamp also highlights the ambition of the company to cover more market segments.
In 2015, the year when the filament lamp turned hot was "fever". Under the "chaos of the world", the field of filament lamps was in full swing.
As a substrate material that occupies a high cost in filament lamps, the main materials are ceramics, sapphire, glass, and metal. The ceramic substrate is undoubtedly the strongest corner.
Previously, sapphire substrates were mostly used for the production of sapphire substrates, but the sapphire substrate of the filament lamp was much smaller than the sapphire substrate, and the technical difficulty was greater, resulting in too high cost of cutting, and at the same time very processing. It is prone to problems such as warpage.
Yan Chongguang, a part-time professor at the Shanghai Institute of Microelectronics, Peking University, pointed out that glass materials are cheap, but the materials are brittle and brittle. The transparent ceramics have good stiffness and a certain thermal conductivity, which can be used to produce better quality filaments.
“In 2014, when the filament lamp was just emerging, the substrate material was mainly made of metal and glass. Since last year, ceramics and sapphire have become the mainstream of filament substrates. The proportion of ceramic substrates is over 40%, and the amount of sapphire is also 20%. Cheng." Li Shengfa, senior analyst of the High-Tech Research Institute LED Research Institute (GGII), said that glass and metal substrates occupy other shares. The main problem of glass substrates is that the thermal conductivity is too poor; the metal substrate is opaque and the light efficiency is not high. Difficult to reach 100lm / w, and the two-sided color temperature of the filament is inconsistent, the current usage is less.
With the advancement of ceramic technology, its cost has been greatly reduced. Therefore, in the case where the photoelectric characteristics of all aspects are almost the same as those of sapphire, the ceramic filament has begun to show an increasingly obvious cost performance advantage.
Zhang Xianjun, chief engineer of Yingluo Electronics, said, “The company has introduced nano-translucent ceramic filaments with superior performance, which can greatly reduce the cost of filament lamps. It is a cost-effective filament material. Our ceramic substrates are mainly dedicated to LED filaments. Light research."
According to the research of high-tech LED, the current price of ordinary alumina white ceramic filament substrate is 0.02 yuan - 0.03 yuan / article, the price of sapphire substrate is about 0.2 yuan / article, the gap is close to 10 times, plus the bracket, alumina white The price of ceramic filament is 0.07 yuan, and the sapphire filament is about 0.25 yuan.
Lin Feng, director of stellar lighting research and development, said, “From the perspective of price, the cost of sapphire is the most expensive, and its price will only rise in the future. The price of ceramics is close to the price of glass, but in terms of performance and yield. Ceramic materials do have to dominate."
High-tech LED research has learned that the low-end filament lamps below 2W on the market are mainly based on glass substrates, because the price is relatively cheap and the production yield is relatively high, which can reduce costs through mass production and procurement. Most high-end products use sapphire substrates. Ceramic substrates occupy most of the market share in the middle.
GGII statistics show that in 2015, China's filament lamp shipments were around 100 million. In terms of filament lamp exports, the output value of filament lamp exports in 2015 increased more than 2 times compared with 2014.
Since last year, in addition to Philips, Osram, GE and other international manufacturers, domestic Foshan Lighting, Shanghai Yaming, Yapuer, Hongli Optoelectronics, Hangke Optoelectronics, Mulinsen, Baishi, Stellar Gaohong, Yuanlei Technology and other LED lighting plants Or packaging companies have also entered the field of LED filament lamps and added mass production.
The filament lamp market will become the new LED lighting segmentation battlefield in the next three years. For more details on the filament lamp market, the filament lamp company, filament packaging company and related supporting enterprises will gather at the 2016 High-tech LED National Tour Survey--the filament lamp special seminar held in Shenzhen Qingqing World on April 26th. Let's discuss related topics together.
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