Comprehensive understanding and all-round advancement
1.1 Treat lighting energy from the height of protecting the environment
1.2 Energy saving is the theme of green lighting, but not the only goal
1.3 Green lighting is more than just promoting the application of energy-saving lamps
1.4 Implementation of green lighting must also pay attention to lighting engineering design and operation and maintenance management
Development of lighting equipment
2.1 Prospects for light sources
A light source is a device that converts energy into light and is the core of implementing green lighting. In the past century, the world's light source products have developed rapidly. In the past two decades, China has also accelerated its pursuit of the world trend. It is expected that there will be greater development in the next decade or two. From the analysis of the situation, the main development trends are as follows.
2.1.1 Further improve the performance and technical parameters of the light source
a. Improve luminous efficiency: It is expected that the gas discharge lighting effect will generally exceed 1001m/w, and the HID lamp will be higher. The incandescent light source will further improve the light efficiency through various technological innovations.
b. Improve color rendering performance: The color rendering index of most light sources will exceed 80, and fluorescent lamps will generally use trichromatic phosphors.
c. Increase the service life: the gas discharge lamp will exceed 10000h, and there will be a variety of new light sources with longer life.
2.1.2 Light source products will have better environmental protection effects and visual effects
a, the 21st century will pay more attention to environmental protection, will study more measures to reduce pollution, such as the development of less mercury and no mercury
The discharge lamp of the LED lamp reduces the diameter of the fluorescent tube and improves the phosphor coating process to reduce the amount of phosphor.
b. Further develop high-frequency fluorescent lamps and DC fluorescent lamps to improve luminous stability, eliminate stroboscopic effects, reduce electromagnetic radiation, and eliminate noise to improve environmental effects and visual effects.
2.1.3 The light source is further developed in a compact and small direction
Develop fluorescent lamps with thinner diameters and compact fluorescent lamps of various forms to reduce the amount of light-making materials, especially the consumption of harmful substances. At the same time, improve the light efficiency of the light source, reduce the size of the lamps, and improve the efficiency of the lamps.
2.1.4 Wide application of electronic technology
The rapid development of electronic technology has been widely used in various fields, and has also created a new road in the manufacture of light sources and supporting electrical appliances. In the future, more high-frequency discharge lamps, DC fluorescent lamps, high-frequency induction lamps, microwave lamps, and other light sources with longer life, better color rendering, and higher luminous efficiency will be developed.
Light-emitting diodes (LEDs) have made breakthroughs, making it possible for semiconductor devices that convert electrical energy into light into the field of illumination. LED has many advantages such as long life (will reach 100000h), good color rendering (Ra 75~85), no stroboscopic, short excitation response time (nanosecond), vibration resistance, weather resistance, safe use, etc. Widely used. In recent years, the brightness of red and yellow LEDs has increased, especially the breakthrough of third-generation semiconductor material manufacturing technologies such as gallium nitride, and blue and green LEDs have been developed, thereby solving white light. Due to its rich and varied color light, it is convenient for color selection and discoloration. It is especially suitable for places requiring multiple colors such as traffic signals, navigation marks, advertisements, gardens and building landscape lighting. It is expected that in the next decade or two, LED will further improve light efficiency and reduce costs. It may become a new type of lighting source, which will cause great changes in the field of lighting and have a major impact on the implementation of green lighting.
2.1.5 Using solar energy
Solar energy is the cleanest and inexhaustible energy source. The new century will make active research and promotion applications according to the requirements of green lighting, including smaller size, higher efficiency solar cells and related high-efficiency light sources. Priority is applied to places with high requirements and inconvenient power.
2.2 Development of lamps and other electrical accessories
2.2.1 Lamps have a great relationship with lighting energy saving and lighting quality, but they are often not taken seriously by people. According to the requirements of green lighting, lamps should be developed from the following aspects.
a. Luminaires should develop new varieties with the development of light sources to meet the needs of new light sources.
b. For places with high visual conditions, such as stadiums, industrial plants, offices, classrooms, etc., lamps are required.
The green lighting LED lamp drive circuit has high efficiency and light distribution, and requires a variety of products, a full range of products, and a protection level to adapt to various places of products. Beijing's bid to host the 2008 Olympic Games will be successful, and will build and renovate more than 30 world-class stadiums, pavilions and a large number of other public buildings. According to the requirements of the "Green Olympics", a large number of high-efficiency and high-quality lamps will be promoted. The advancement of lighting products.
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