Package body accounted for 52% power, thermal, optical design, accounting for 48%, in which the package, the chip cost, accounting for about 50%. Therefore, the chip, package, and application of the three aspects of the value of the proportion of about 1:1:2. According to the CSA data, in 2011 the domestic LED industry total output value of 156 billion yuan, with 6.5 billion yuan in output value of the chip industry, packaging industry output value of 28.5 billion yuan output value of downstream applications of 121 billion yuan. The value of the domestic chip industry, accounting for less than 1 package of about 20%, and the declining proportion, application links accounting for 70% or more, are continuing to rise. Match with our LED business in the industrial chain of distribution, due to financial and technical barriers hinder domestic chip companies with more than 50 packaging companies is about 1,000 more than 3,000 enterprises downstream applications. Our country is the world's largest rechargeable led light manufacturers and consumer markets, a larger proportion of application areas beyond reproach, the space the greatest part of the LED general solar flashlight of the whole industry chain. But this value chain with the representative of the Light Bulb does not match, reflects the general situation of the domestic heavy application of light developed. MOCVD 2009-2011 irrational investment and not an immediate accumulation of technology and the breakthrough is a process.
Is commonly used on the market with quartz quartz metal halide discharge tube materials, due to the quartz crystallization temperature characteristics of the material and the high temperature chemical
Instability, so that the working temperature limit of the quartz material in the quartz Halide effective vapor pressure inside the arc tube, luminous efficiency and color rendering properties and therefore
Is limited, and thus relatively poor lumen maintenance during the life of the light color will change shortcomings. And the use of translucent (≥ 97%) transmittance Tao
The porcelain ceramic metal halide discharge tube materials, not only can overcome the shortcomings of the quartz metal halide, and the set of excellent high-pressure sodium lamps and quartz metal halide
Points in one: the luminescence increased by 15% to 20% more efficient than quartz metal halide, and does not consider intermediate visual relationship 150W specifications with higher optical efficiency than power
High-pressure sodium lamps; significant color than quartz metal halide increased by 8 to 10; better rechargeable led light maintenance, start-up requirements stability and longer life; chromatic aberration, color temperature drift
Small. Experts point out that the future development direction of the light source luminous efficiency, color and life, it has also become a measure of lamp performance of three elements. In high
Intensity gas discharge lamp, low light efficiency compared to a high-pressure mercury lamp, the color, the color table; efficient high pressure sodium light, poor color, poor color table
Metal halide lamps for both high light efficiency and high color rendering characteristics for high intensity discharge lamps, the best rechargeable fans source of the optical and electrical properties. At the same time high pressure
The worst mercury lamp light efficiency and color rendering, the United States and the European Union in 2013 began to phase out the types of lamps.