General lighting includes indoor lighting and outdoor lighting. Both types of applications require luminaires with high luminous efficiency, long lifespan, and environmental protection. The main difference is the effect and quality of indoor lighting sources (including color rendering, uniformity of chromaticity, output and uniformity of the light source, The human eye comfort, etc.) have higher requirements and the consumer groups they face are more sensitive to the price of lamps.
On the other hand, the advantages of the blue LED chip's luminous efficiency need to be further improved and limited by the white light packaging technology. Most of the current lamps and lanterns are high color temperature cool white light, and the consistency of color products is not satisfactory compared with traditional lighting, making it unsatisfactory. Semiconductor lighting fixtures are currently used in larger applications in outdoor lighting, and they have only just started in indoor lighting. Therefore, limited by the cost and lighting quality, semiconductor lighting will take the lead in large-scale outdoor lighting applications, and then gradually enter the field of indoor lighting as the technology continues to develop.
A typical outdoor application is a street light, which is an important part of urban lighting, and its power consumption accounts for a large part of the entire lighting power. The traditional street lamp adopts high pressure sodium lamp, and the high luminous efficiency high pressure sodium lamp has low color rendering index, which makes the color distortion of the irradiated object very obvious; the high color rendering high pressure sodium lamp has improved color rendering, but its luminous efficiency and life are Loss; limited by its short life, so frequent high maintenance operations are often required.
General high pressure sodium lamp light distribution performance is poor, which means that the road lighting uniformity is not good enough, and in order to meet the road lighting requirements for uniformity of the general high pressure sodium lamp street lamp uses more than the lamp pole illumination demand much more rated power, As a result, energy is wasted. Therefore, the development of new-type, high-efficiency, energy-saving, long-life, better color rendering index, and environment-friendly streetlights is of great significance for energy conservation in urban lighting. The huge market demand in the field of outdoor lighting has driven the continuous improvement in the technological level of power-type and other aspects, the cost has been declining, and new products have been emerging.
The most common products for indoor lighting are incandescent and fluorescent lamps. The luminous efficiency of incandescent lamps is extremely low, only a dozen lumens/watt, and fluorescent lamps contain harmful substances such as mercury, which is not conducive to environmental protection. Therefore, the demand for highly efficient and environmentally friendly lighting products in indoor lighting is even stronger. Although the current devices have exceeded the incandescent and fluorescent lamps in terms of luminous efficiency and environmental protection, the lighting effects and quality of the lamps formed by them have not yet formed the advantages of traditional lighting sources. The application of indoor lighting has only just been applied. Start. However, the huge market demand for indoor lighting will surely promote the rapid development of packaging and system-level application technologies for indoor lighting applications.
General lighting into the new direction of LED lighting industry penetration
Abstract: General lighting includes indoor lighting and outdoor lighting. Both types of applications require luminaires with high luminous efficiency, long life, environmental protection and other characteristics