1 Introduction
Characteristics of high-power LEDs and comparison with other light sources
High-power LEDs as light sources for illumination have the following advantages:
1) Less power consumption: LEDs with a luminous efficacy of 75 lm/w reduce power consumption by 80% compared with incandescent lamps of the same brightness;
2) Long life: The product life is up to 50,000 hours, and it can be used for 7 hours in 24 hours.
3) Nanosecond response speed makes dynamic control of brightness and color easy: color dynamics and digital control
4) Large design space: It can realize the organic integration with the building, and achieve the effect of seeing only the light.
5) Environmental protection: no harmful metal mercury, no infrared and ultraviolet radiation.
6) Color: different wavelengths produce different colored light, bright and saturated, no filter is needed, can be controlled by red, green and blue three primary colors to form various colors, which can achieve various color changing effects such as full color gradient.
Compared with the life of the incandescent lamp, the 5mm LED and the Luxeon 1W high-power LED, the high-power LED has a great advantage in life, and the incubator and other traditional light sources have much room for improvement in many technologies.
Table 1 Life comparison of incandescent, 5mm LED and Luxeon 1W high power LED
2 Application of high power LED in underwater lights
With the acceleration of urban construction, leisure squares and green space parks have become the highlights of the city, representing the desire of urbanites to return to nature. Water represents spirituality, water features and fountains are an integral part of leisure plazas and green parks, and the demand for underwater lights is quite large. At present, color underwater lights are generally traditional PAR lamps, and various colors are required to add external filters, which greatly reduces the luminous efficiency. According to research, the total luminous flux of traditional lamps in red, green and blue underwater lights is 1 to 2 times that of LED underwater lights. The packaging technology of LEDs determines the directivity of the light source, and LED The light source is very small in size and can be used with optical lenses of various angles. These characteristics determine that the traditional underwater light consumes 13 times more power than the LED underwater light. It can be seen that the energy saving effect of the LED underwater light is quite remarkable. In addition, the spectral distribution of LED determines that its color purity and saturation are unmatched by traditional PAR lamps, so it has a strong competitive advantage.
The LED packaging technology determines the light source of the light source is very strong, as shown in Figure 1:
figure 1
3 Application of high power LED in acrylic luminescent identification products
In the market survey, Pinergy Photoelectricity discovered that the acrylic illuminating logo, as a substitute for neon lights, has begun to rise in Shanghai, Beijing and Guangzhou in the past two years under the exemplary role of many internationally renowned companies such as McDonald's and KFC. They not only overcome the shortcomings of traditional neon lights, such as large power consumption, inconvenient maintenance, hidden dangers, and lack of pen and painting. The illuminators also have the characteristics of full color and uniform light transmission, and the three-dimensional effect design makes the logo not only at night. Clear, dazzling, temperament, and elegant and dignified during the day, the momentum is heroic, these two advantages are incomparable neon or metal characters.
Figure 2 LED light string in the application of acrylic words
4 LED application in modern curtain wall buildings
The application of architectural glass in modern buildings is increasing, the variety is increasing, and the functions are more and more complete. The amount of construction glass used in the building, the type of application and the functions it has can be used as a sign to evaluate the modernization of the building. In particular, the decorative performance of architectural glass can be said to be ever-changing. Without building glass, there is no modern building. However, because the glass can transmit light, as well as the optical properties of reflecting light and absorbing light, the landscape lighting design matching with the building enters a pattern. How can we reproduce the beauty of the glass during the day through the light? This is a common concern for landscape lighting designers. Pineng Optoelectronics believes that for the lighting treatment of large-scale glass modern buildings, the use of "architectural lighting" to integrate the light-emitting device (light source) and building components, not only makes the connotation of lighting fixtures deepen and expand, but also in many forms Variety and refreshing.
The high-power LED has high single-effect, small unit size and large design flexibility, which can fully match the structural characteristics of the light carrier and is easy to install. A new lighting solution is available for this type of building.
Figure 3 LED modern building application case
5 Conclusion
The semiconductor lighting industry is a vibrant future industry. The continuous improvement of packaging technology, heat dissipation technology, optical technology, application technology and control technology is promoting the accelerated development of this industry. A future of LED lighting will be successfully applied with high-power LEDs. Already coming.
Edit: Cedar
Wuxi Motian Signage Co., Ltd , https://www.makesignage.com