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An Analysis Of Innovation Strategy In LED Street Light Design
- May 15, 2017 -

With the development of semiconductor technology, LED with its low energy consumption, high luminous efficiency, small size and other advantages gradually attracted attention, and was applied to street lamps, lighting technology for the development of the city made an important contribution, and With the development of society, people for the lighting quality requirements are getting higher and higher, lighting design not only to consider the brightness, but also consider the lighting color, shape, texture, etc., therefore, also need to LED street lamp design Innovation and improvement to improve the quality of urban lighting.


LED (Light-EmittingDiode) is a light-emitting diode, gallium (Ga), arsenic (AS), phosphorus (P) made of a compound of light-emitting semiconductor electronic components, the earliest can only issue low-light White, green, blue, purple and other visible light and infrared, ultraviolet light, etc., including a variety of light, light, and so on, Its various types are also very many, there are ordinary monochrome light-emitting diodes, high-brightness light-emitting diodes, ultra-high brightness light-emitting diodes, infrared light-emitting diodes, color light-emitting diodes and other control modes are constant voltage control and constant current control, LED is constant current control.


LED (Light-EmittingDiode) is a light-emitting diode, gallium (Ga), arsenic (AS), phosphorus (P) made of a compound of light-emitting semiconductor electronic components, the earliest can only issue low-light White, green, blue, purple and other visible light and infrared, ultraviolet light, etc., including a variety of light, light, and so on, Its various types are also very many, there are ordinary monochrome light-emitting diodes, high-brightness light-emitting diodes, ultra-high brightness light-emitting diodes, infrared light-emitting diodes, color light-emitting diodes and other control modes are constant voltage control and constant current control, LED is constant current control.


LED lights than the traditional street in the technical superiority of the advantages made in the road lighting on the application of more and more widely at home and abroad have a large number of products available and applied to the actual, better improve the quality of urban lighting, But in practice, LED lights in the heat, light distribution, drive life and maintenance, there are still some flaws.


Light-emitting diodes as light source lamps, the energy of about 80% to 90% can be converted into heat, if the heat can not be dispersed in time, will make the die temperature rise, accelerate the light-emitting diode light failure, affecting color temperature quality, while But also lead to shortened lamp life.

Light-emitting diodes as light source lamps, the energy of about 80% to 90% can be converted into heat, if the heat can not be dispersed in time, will make the die temperature rise, accelerate the light-emitting diode light failure, affecting color temperature quality, while But also lead to shortened lamp life.


LED street lamp modular design is a number of light-emitting diode light source made with a light, heat, dust, water and other structural modules, by a number of light source module and lamp base, the drive together constitute a whole LED lamps, change the past all the light source are installed in a lamp within the model, the specific structure is as follows.

 

In this structure, the light source module is the core part, can be placed in the lamp, can also be placed under the light pole, using two interfaces, respectively, the light source module and the drive and the lamp base connection, connected with the lamp base structure Can be used square or bar and other standards, the use of screws, bayonet or spring buckle to be fixed, so that when the need for maintenance, which part of the damage can only repair the replacement of the corresponding part, without the need for the overall lighting Maintenance, simple operation and can save maintenance costs


Light source module is the core of the lamp, but also a key part of the design, in terms of heat, can be used in the original cooling device to install a heat storage device, the use of heat conduction principle and the rapid heat transfer properties of cooling medium to solve the problem of heat ; Usually use the ring plus screws to achieve the required IP level, and in the light distribution design, you can use conventional secondary optical lens, three optical design of the optical heat of the program or the use of integrated optical lens, in this design , With the help of the traditional three times is the idea of optical design, but the previous design of the independent reflector and light source module structure together, the light source module cavity in accordance with the reflector shape design, coated with reflective film, The heat sink is distributed around the reflector so that the light source module becomes a photothermal-body structure.


3.3 on the surface of the lens with the current design of the lens lights are mostly outside the surface of the lens with light, in the use of integrated lens, the processing of a whole after the surface prone to uneven phenomenon, which will affect the luminous efficiency of street lamps Is not conducive to maintenance, and if the use of internal surface with light lens, you can ensure that the outer surface of the lens smooth, so that maintenance more convenient.

 

Usually a light-emitting diode from the lens of the light emitted from the inner surface of the modulation of light and large-angle total reflection of light in two parts, and the proportion of total reflection light is very small, only the lens side of the reasonable design, you can ensure that large-angle light Of the total reflection.

 

At the same time the outer surface of the lens is flat, and it is easier to connect into a whole, and the light distribution is not affected by the outer plane thickness, and the structural design is easier.


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