"Landscape lighting" always reminds people of the colorfulness of the city, as well as the clouds of light shining above the lights. LED, the fourth revolution in the history of human lighting LED is a kind of luminescent semiconductor component, recognized as one of the most promising high-tech products in the 21st century. It also promotes the lighting revolution and promotes energy saving and environmental protection. Protection makes a significant contribution. With the government's vigorous promotion and global industrial ladder transfer, the future landscape lighting will be the generation of LED dance.
Give the dark city a beautiful definition
"Landscape lighting" always reminds people of the colorfulness of the city, as well as the clouds of light shining above the lights.
LED, the fourth revolution in the history of human lighting
LED is a kind of luminescent semiconductor component. It is recognized as one of the most promising high-tech products in the 21st century. It has also made significant contributions to promoting energy-saving emission reduction and environmental protection while initiating the lighting revolution. With the government's vigorous promotion and global industrial ladder transfer, the future landscape lighting will be the generation of LED dance.
What are the advantages of LED, favored by landscape lighting
(1) LED lighting has a huge energy-saving effect, the power of a single LED is only 0.03-0.06W, and the driving voltage is low (1.5-3.5V), the current is small (15-18mA), in the case of forming the same lighting effect, The power consumption is only one-eighth of that of incandescent lamps and one-half of fluorescent lamps. It can be seen that the LED light source is used instead of the ordinary lamp and the fluorescent lamp for the landscape lighting with huge power consumption, and the energy saving effect is very obvious, and has strong market competitiveness. Moreover, the life of the LED light source is 100 times that of the incandescent lamp and 20-30 times that of the fluorescent lamp, eliminating the need for frequent maintenance, plus its rich color and good controllability, which is better for urban landscape lighting. . Now, LED is replacing the traditional light source with a growth rate of 50%, which will lead to the fourth revolution in the history of human lighting, greatly improving the living environment of mankind and alleviating the increasingly severe energy crisis in the world.
(2) The light source structure of LED is light (epoxy package), small in size, can adapt to a variety of geometric sizes and different space sizes, is a solid light source, does not inflate, does not have gas sealing problems, does not require a glass casing, resistant Impact, vibration resistance, and not easy to break, determine that its luminaire strength and stiffness are lower than other electric light source requirements. Moreover, the LED is a cold light source, has good controllability, fast response time, can be repeatedly turned on and off frequently, and is not tired.
(3) The color of the LED light source is pure and rich, and it can evolve any color, which is better than the color metal halide lamp, and its decoration is unparalleled. The compactness of the LED light source makes it flexible enough to form a variety of points, lines, faces, balls and the like. According to the purpose of landscape lighting decoration, LED light source through microcomputer intelligent control technology, its changes can be made into points, lines, faces, balls and other forms, including: flicker (flicker) control, suitable for forming "points, lines "; Gradient (flexible) control, suitable for forming "face"; dynamic (jump) control, suitable for forming longitudinal and lateral dynamic changes of the pattern. The above three changes can also form the rotary motion of the sphere, in addition to single-lamp control and group light control.
Of course, LEDs are not without drawbacks.
(1) LED is more "petty", it needs to support the excellent heat dissipation, constant current drive and other solutions. If it is used improperly, it will easily appear light decay or even "dead light" phenomenon.
(2) The power of a single LED is low, and in order to obtain high power, multiple parallel use is required.
(3) LED color rendering index is low. The color displayed under the LED illumination is not as true as the incandescent lamp, which is analyzed from the spectral distribution and is a technical problem.
LED landscape lighting requires engineers and designers to make a stone
Although LED is good, it also has obvious functions in landscape lighting. However, landscape lighting is not a simple technical parameter. As a new carrier for urban viewing and promotion, landscape lighting must be the perfect combination of art and technology.
Among them, technology is the foundation, art needs the support of technology, and art is the perfect extension on the basis of perfect technology, just like a beautiful flower on a strong plant.
In the process of LED landscape lighting design and installation, engineers and designers should also pay attention to the following points:
(1) The goal of landscape lighting is to coordinate the landscape lighting with the landscape, adapt to the conditions of the scene, and adapt to the characteristics of the building to achieve a new level of landscaping. At the same time, pay attention to humanization and intelligence. The art of landscape lighting must pass through light and illumination to be energized by life.
(2) LED lamps used in landscape lighting should be designed to be flexible, to beautify during the day and to brighten the art under the night. In the future, the landscape will be bright, and it will surely jump out of the simple hook and run, and combine the advantages of LED to provide high-quality, high-grade lighting engineering and products. For example, LED fixtures can be used to outline architectural structures, or LED luminaires can be embedded on the facade of the building, combined into a pattern by illuminating electricity, or a small LED floodlight can be used to illuminate the facade of a building or component. For the illumination method that outlines the outline of the building or the facade of the building by the brightness and position of the illuminator itself, in addition to considering whether the volume and style of the building to be photographed are suitable for adopting such lighting methods, The brightness of the luminaire should also be related to the surface brightness of the object being illuminated. That is to say, in addition to letting people see the pattern of bright LED lamps, the viewer should be made aware of the general shape and shape of the building without letting some lone bright lines or spots inexplicably In the air, it is not dull to illuminate the facade of the building.
(3) When constructing the night landscape by the brightness and pattern of the illuminant attached to the building, attention should be paid to controlling the brightness of the surface of the luminaire and the relationship between the lighting direction of the luminaire and the viewer's line of sight, because the architectural night scene belongs to the scale category of the city street, people It will be viewed from a lot of positions and directions, that is to say, there will be a lot of viewing distance and viewing direction. Therefore, comprehensive considerations should be made in the design of the luminaire and the installation of the luminaire, so that the LED light source with a very concentrated beam is made. The luminaires can provide a satisfactory view at all angles and distances. Therefore, the formal implementation of money in the project is to test the lighting effect, which is very necessary for the landscape lighting project.
(4) When using LED products in landscape lighting projects, economical arguments should also be carried out to comprehensively consider technical advancement and reliability, construction costs, maintenance management and other related issues to improve the reliability of the lamps. Although LED lighting technology has gradually matured, heat dissipation and waterproofing are still key issues, and special attention should be paid. Where possible, relevant experimental results and argumentation analysis should be used to form a report as an integral part of the design. Relevant experts and scholars should also put forward practical suggestions and suggestions on the standard specifications and evaluation methods of lighting effects for the use of LED light sources in lighting projects, so that the project can be carried out smoothly.
In short, LED landscape lighting is a perfect combination of technical and artistic work. It requires lighting engineers and lighting designers to work together to grasp the design concept and creativity, and refine the technical solutions so that every LED landscape lighting becomes a city. A beautiful scenery. Make the landscape lighting design perfect and moving.
In terms of landscape lighting, LED has a more unique advantage. It can be convinced that LED landscape lighting will develop rapidly along the road of multidisciplinary integration, moving towards art, intelligence and flexibility. LED is gestating unlimited business opportunities. . Some of the inherent advantages of LEDs are the main driving force for the rapid development of LED landscape lighting. LED application developers need to closely contact customers and upstream and downstream industry support, and work together to promote the promotion and application of high-quality products and projects. aspect:
(1) is to continue to develop high-power LED.
(2) Secondly, it is a compact modular power supply design for LED lamps.
LED power supply is different from traditional light source, and low-voltage direct current is used. At present, high-efficiency DC power supply is still not mature, and low-efficiency power supply system makes LED energy-saving level greatly reduced.
(3) It is necessary to eliminate the spot light spots and uneven color mixing caused by the LED planar light source.
(4) The advantages of LED application in landscape lighting are unparalleled, soft light, bright colors, easy to realize dynamic digital control, energy saving and environmental protection, etc., it will replace the traditional landscape lighting fixtures. To this end, it is necessary to strengthen LED promotion, improving the level of selection and use of LEDs.
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