Today's LED street light features:
The difference between high-power LED street lamps and conventional high-pressure sodium lamp street lamps is that the light source of high-power LED street lamps adopts low-voltage DC power supply, high-efficiency white light diode composed of GaN-based power type blue light LED and yellow phosphor. Light Emitting Diode (LED) is a high-efficiency solid-state light source formed based on semiconductor PN junction that can emit light with weak electric energy. Under certain positive bias voltage and injection current, The holes injected into the P region and the electrons injected into the N region diffuse into the active region and emit photons through radiation recombination, converting electrical energy directly into light energy.
As the light source of street lamp, LED has many advantages compared with traditional street lamp light source.
1. The LED street lamp itself has the directivity of light and no light diffusion to ensure the light efficiency;
2. LED street lamps have unique secondary optical design, which can illuminate the light of LED street lamps to the required lighting area, namely the road surface, further improving the lighting efficiency and achieving the purpose of energy conservation;
3. The light source efficiency of LED has reached 100lm/W at present, and there is still much room for development. The theoretical value can reach 250lm/W. The luminous efficiency of high-pressure sodium lamp increases with the increase of power. Therefore, the overall luminous efficiency of LED street lamp is stronger than that of high-pressure sodium lamp;
4. LED street lamps have higher light color rendering than high-pressure sodium lamps. The color rendering index of high-pressure sodium lamps is only about 23, while the color rendering index of LED street lamps can reach more than 75. From the perspective of visual psychology, to achieve the same brightness, the illumination of LED street lamps can be reduced by more than 20% on average compared with high-pressure sodium lamps (refer to British road lighting standards); Moreover, at the intermediate visual level, the human eye is easier to distinguish things in the high color temperature environment than in the low color temperature environment, thus avoiding the occurrence of some dangerous conditions;
5. LED street lamps have low light decay, less than 3% in one year, and still meet the requirements of road illumination after 10 years of use. Therefore, LED street lamps can be designed with lower power than high-pressure sodium lamps;
6. LED street lights can be automatically dimmed to meet lighting requirements at different periods of time, minimizing power consumption and saving electricity as much as possible;
7. LED is a low-voltage DC device, and the voltage driving a single LED is a safe voltage, so it is a safer power supply than using high-voltage power supply, especially suitable for public places. The characteristics of DC make LED especially suitable for combination with solar energy and wind power;
8. Each unit of LED crystal has only a small volume, so it can be fabricated into various shapes of devices, and is suitable for volatile and shock-prone environments;
9. Long service life: the theoretical service life can be more than 50000 hours;
10. LED can be switched frequently without worrying about its damage;
11. Easy installation: directly install the LED street lamp cap on the lamp pole to replace the original sodium lamp cap
Sharing of lighting design cases in dance halls, slow rocking bars, and other places
The computer lights on the stage can be used in combination with the lens scanning computer lights and the head shaking computer lights in the dance floor. They can be used in groups at the same time. According to the different needs of the environment and singing and dancing (slow music, fast music), the creation process can be edited to create different atmosphere
According to the use requirements of nightclubs, disco ballrooms, slow rocking bars, KTV and other venues, we have made comprehensive consideration on the lighting design:
1、 Stage part:
The PAR 64 (silver aluminum alloy shell with good texture) spotlight is used in front of the stage entrance and behind the stage. The imported light source with wide beam is used in front of the stage entrance to evenly distribute light as surface light; At the back of the stage, a light source with medium beam is used to project the beam to the front of the stage as a backlight. A top light is set at the top of the stage, so that the basic light of the stage can evenly illuminate the stage. Different color atmospheres can be changed by adding colored paper, grouping programming, walking lights, etc., to meet the different needs of singing and dancing performances. The light source imported from the United States is of high reliability and does not need to be replaced frequently, and there will be no bad use conditions such as bulb bursting.
In addition, "We have equipped scanning advanced computer lights in the middle and back facades of the stage (GENIUS/Italy. Zhenli's LP 97 or HIGH END/America. Dengbeam's TECHNOBEAM - which has been used for many large-scale parties and events, and '98 Faye Wong's Beijing and Shanghai tours have used 24 of them... One of the two options is that the LP97 has complete functions and good quality, while TECHNOBEAM is a boutique among computer lights, with different characteristics. See the information for details.)"
The use of LP97's glass rotation pattern, three-sided prism, five-sided prism or TECHNOBEAM's three-dimensional art modeling projects an extraordinary large area of light spot on the stage, in which the light spot changes from time to time and floats freely. Through the lens scanning, the figure is swept from the inside to the outside, from the bottom to the top, and is overlapped and combined with the beam projected from the back facade, creating a variety of colorful and face-saving shapes in the air. In addition, the shaking head computer lamp (GENIUS/Italy. Jelly's LP 69, which can be hung at the entrance of the stage or placed on both sides of the ground stage) on the entrance of the stage can take into account the light needs of the stage and its surroundings because of its free rotation angle and no dead angle in the beam scanning. In this way, the front, middle and back fields echo each other, and the lighting engineer can make full use of it under good hardware level to make various special effects scenes to meet the various performances of the stage Activity requirements.
At the same time, the computer lights on the stage can interact with the lens scanning computer lights and the head shaking computer lights in the dance floor, and can be used simultaneously or in groups. According to the different needs of the environment and singing and dancing (slow music, fast music), the creation process can be edited to create different atmosphere. After artistic editing, its patterns can reach dozens or hundreds of varieties, and the colors (full color, half color) vary, resulting in extremely rich color combinations. Its stroboscopic effect can enhance the dynamic feeling with fast rhythm tunes, and white light can also be used for light tracing. In short, the flexible use of computer lights can produce the desired tone of the stage and hall, which is the best way to create features, set off the atmosphere and meet various requirements (singing and dancing, sketches, dancing, fashion show, etc.).
2、 Several lighting fixtures with different effects are used in the dance floor:
A. Computer light: a number of lens scanning computer lights (GENIUS/Italy. Jelly's LP 78) are used, which are characterized by very stable performance, rich and bright colors, and are used in combination with the excellent performance of the computer light in the dance floor (GRIVEN/Italy. Given's GR 422: beautiful shape, good optical output, large light spot, full functions, UV special effects, glass patterns, prism rotation and other effects), or alone, to bring the atmosphere in the dance floor to a climax.
B. Central main lamp of the cosmic flying saucer (GRIVEN/GR 500 of Italy Giffen): Located directly above the dance floor, compared to other brands of main lamps, this lamp has a thin body, large cross-sectional area, sensitive pickup effect, quiet motor operation, and built-in multiple programs that change with the rhythm of the music, and the beam also changes, with a large light coverage area. Therefore, one lamp can play the role of multiple lamps, similar to the moonflower lamp, The revolving tunnel lantern and other effect lights can be used for slow music; It can be used for fast music in combination with stroboscopic and computer light. Usually, when the computer light is not on, it can also be used independently,
C. Effect lamp (flower lamp): The patterns of the tube rolling flower lamp, Yili flower lamp, effect flower lamp and so on vary. Dozens of beams of light pour down and spread evenly on the ground, such as stars, or flowers of various colors, and then turn into other beautiful pictures in a twinkling of an eye. After a little smoke, the clusters of color beams rotating in the air are either interwoven or parallel, and the effect is excellent; The revolving tunnel lantern and the slow-turning moon lantern (colored paper with various colors can be added) can form a leisurely floating halo and a radiant feeling, which is an excellent match for slow dance or melodious dance music.
D. The spotlight AR 56 is made of silver aluminum alloy shell, with good texture. It can be used after grouping with colored paper. It can not only be used as the basic light of the dance floor, but also be used to walk with the music to create different atmosphere effects.
Spotlights can be dimmed, and special effects such as snowflake machines are also equipped due to the possibility of performance. In addition, powerful strobe lights and other equipment are also equipped to produce special effects for performances and discos. There is also a certain margin for light control equipment for future adjustment and addition of equipment.
In short, the design not only considers the requirements of the use function, but also carefully selects the reliability and stability of the lamps. The selected lamps have good optical output effect, rich changes and stable performance, and are very novel. For example, the use of shaking head lamps, mirror tube rolling lanterns and rotating tunnel lanterns have very rich changes, and their effects are not achieved by previous or other similar lamps. Therefore, They are the preferred lamps for entertainment halls with very good performance and price ratio.
