LED lighting market analysis of commercial lighting is optimistic

The development of the global lighting market is mainly affected by economic growth, population growth, and the development of related industries (real estate/roads, automobile industry). In addition, the impact of short-term immediateness is dominated by technological innovation, environmental concepts (energy efficiency standards), and changes in consumer preferences.

In recent years, the global economy has continued to grow, driving real estate/road and manufacturing activities to increase, and the speed of urbanization and the expansion of rural areas have all contributed to the growth in demand for lighting. In 2005, the global lighting market reached US$74.6 billion, and the overall market is expected to grow to US$90.4 billion by 2010. In 2005, lighting consumes 19% of the world's electricity, which shows that its energy consumption is quite large. However, most of the lighting sources use low-efficiency light sources. For example, incandescent lamps have luminous efficiency of only 8-25 lm/W, and currently about 1/3 of them are used. Incandescent lamps are lighting sources, so with the global energy prices rising and the rapid development of alternative lighting technologies, the penetration rate of various alternative light sources has increased.

However, existing light sources are too cheap, and unless there is government involvement (such as the ban on lead and incandescent regulations), the possibility of replacing traditional light sources with LEDs in the short term is negligible. In the short term, the main force of market development will be in commercial lighting, mainly because commercial lighting consumers are relatively less sensitive to price, and LEDs do not need to meet existing lamps, and can design new lamps that are different according to commercial lighting needs. In terms of residential lighting, price is the key to driving the market. Whether the government will subsidize or whether consumers are willing to accept it is a factor that affects LEDs entering residential lighting. The future e纀ED will be cut into special areas such as relatively low illumination, such as Kitchen and bathroom. It is estimated that the LED lighting market will reach 980 million US dollars in 2011, and the main sources of growth are architectural lighting and commercial lighting.

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The radius of curvature of one surface of the aspheric condenser lens varies with the height from the optical axis, so as to achieve the smallest spherical aberration, and the other surface is convex or flat. This type of lens can achieve short focal length focusing that cannot be achieved by a spherical lens. Light.
The aspheric condenser lens has a larger clear aperture, a higher NA, and a lower f/# value than a spherical lens. Therefore these lenses are very suitable for high-efficiency lighting applications or for collimating broadband light sources, LEDs, or other similar light sources. The condenser lens is not suitable or recommended for imaging on the camera sensor. The image can be resolved better by achromatic doublet lens or triplet lens or tube lens.

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