Modern stage lighting designers put forward a new management concept for stage lighting, which is to combine multiple digital lighting equipment with different functions and effects, such as digital dimming silicon boxes, digital color changers, computer effect lights, computer color change lights , Digital fog machine, digital bubble machine, etc. are connected to be controlled by a digital dimming console and controlled by a lighting engineer. The DMX512 signal transmission system has proved that this idea is feasible. Secondly, the world's first unmanned stage lighting control system was released. This system has filled the domestic gap and is currently the international leader. The system is composed of three parts: electronic audio recognition system, song lighting program comparison database and time axis program editing software. Each part complements each other and is indispensable. It is extremely convenient to use, and you can order songs at will. The system immediately recognizes the music melody, and adjusts the corresponding type of lighting to match the corresponding effect, and adjusts the lighting to match the flashing of the drum.

   Neon technology related technicians have invented a long-distance installation of neon lamp transformer, through the transmission of 500V copper core BV power cord, the transformer can be installed tens of meters or even hundreds of meters away from the tube. This technology has two biggest features: 1. The transformer can be centrally installed in a place where it is easy to monitor in the background. In case the neon light transformer fails during the performance, it can be replaced in a short time; 2. When a certain lamp occurs When the tube fails to light up, other lamps can still light up. Using this technology, the application of neon lights on the stage has been more secure.

High-frequency induction lamp technology The previous high-frequency induction lamp coupler has too much heat in the bulb cavity, causing the lamp power to be unable to exceed 165W; 2.65MHz oscillation frequency, electromagnetic compatibility indicators are difficult to pass; theoretically the life of the induction lamp More than 60,000 hours, but the electrolytic capacitor restricts the life of the entire lamp. At present, it has been possible to overcome the above problems by changing the power supply of the induction lamp, using magnetic filter components to suppress and eliminate the conduction interference, and abandon the use of electrolytic capacitors, etc., to overcome the above problems, making the induction lamp break through the development bottleneck and take an important step to a higher field. .

Experts on the development trend of stage lighting industry generally believe that domestic lighting companies have developed rapidly in recent years, and have made great progress in the quantity and variety of lamps, performance functions, manufacturing processes, quality levels and testing methods, but there are also Unclear product function positioning and blind production of some enterprises are worthy of attention.

  1 Lack of awareness of intellectual property rights, price advantages are no longer obvious

  The technical barrier of professional lighting is low. The main component is the computer light, which can be assembled according to different requirements of customers. The technology is basically the same as that of foreign lighting. Therefore, in the past few years, my country's lighting exports benefited from ample labor and cheap raw materials. However, with the accelerated development of the integration of the world economy, we will inevitably face challenges from international technical barriers, product patent protection, and continuous improvement of market rules. This will affect some companies that have weak R&D technology and rely on imitation or even plagiarism. , Development will be difficult. The standardization of the lighting industry, its own intellectual property rights, core competitive technologies, and national brands have become one of the most pressing topics in the industry.

   On the other hand, after the financial crisis and inflation, the price advantage of the stage lighting industry is no longer obvious. Rising raw material prices and rising labor costs have caused manufacturing costs to rise by about 20%. However, with a general increase of 20% in costs, product sales prices cannot reach a 20% increase. This aspect forces my country's lighting export-oriented enterprises to transform from labor-intensive to technology-intensive and knowledge-intensive. Exporting countries are also facing some adjustments.

  2Enterprises consciously take responsibility for environmental protection, and the "green stage" puts forward new requirements for LEDs

The country and the entire society pay great attention to environmental protection, which has caused more and more companies to invest in the trend of low-carbon environmental protection. On the one hand, they improve equipment, improve production management, reduce waste of resources, and strive to ensure the quality and stability of lighting products. Sex. On the other hand, the use of LED light sources to replace the original high-power bulbs, and technical research on LED lighting products in line with stage performances.

   As a green light source, LED has the advantages of high efficiency, energy saving, safety and perfect interpretation. But as a stage light source, perfect stage lighting function and performance are the most important. LED still has some problems to overcome in these aspects. The calibration life of the LED is 50,000 hours, and the lamps that can be used to the calibration life are relatively rare, and the light will decay quickly if it is not handled well. Different from the fixed light distribution of ordinary lighting fixtures, the light of stage fixtures is variable and can be adjusted, which is reflected in the distribution of light intensity, the shape and color of the spot. At the same time, it must have good color rendering, suitable and stable color temperature, and good consistency.

Since LED has not entered the field of stage lighting for a long time, only stage lighting users and a small number of manufacturers are concerned. In the past, the focus and related measurement data were mostly concentrated in the white light part. There is no involvement of color light, and no unified measurement has been introduced. standard.

   In the photometer, the LED does not perform very well. The light measurement parameters of stage lamps are not enough, and subjective evaluation is required. An experienced lighting engineer must have a subjective evaluation of light efficiency, including light uniformity, chromatic aberration of light edges, imaging deformation and other indicators. When LED is applied to stage lighting effects, it is necessary to obey the arrangement of the lighting engineer and make the technology serve the effect. This is a new requirement for LEDs on the special occasion of the stage.

  3 The combination of lighting technology and art makes it an inevitable trend for enterprises to master product application technology

   With the advancement and development of science, light no longer plays a purely role in lighting. Both the theater stage lighting and the stage lighting for various displays or outdoor performances have undergone earth-shaking changes. The stage lighting design and operation have gradually changed from purely technical work to a combination of technology and art.

  Computer software for lighting design will continue to develop, which will eventually allow the designer to dominate his “visual” technology in a completely artistic “interactive” way. Today's lighting software only provides designers with assistance in design, drawing and paperwork. Future design software will be able to use "touch screen" and "voice recognition" functions. The intelligent control of the stage lighting system has begun to take shape.

   Keeping pace with the development of stage lighting technology is the growth of enterprise stage product application technology. Some large domestic enterprises have accumulated experience in lighting product application in related projects.

   They can design lighting control, special effects equipment and effect monitoring system solutions according to different scenes required by the stage, which has gone beyond the old idea of ​​simply selling products. Choosing to work with the performing party to complete the lighting design plan for a party, providing design ideas, and providing service and technical support will undoubtedly become another powerful bargaining chip in the corporate bidding process besides products. Of course, this is a big test for the strength of the company. It not only requires products with stable and reliable quality, but also requires high-quality design and on-site operators.

  4 The full name of stage lighting has arrived in the digital era, and the market demand for computer lighting will increase year by year

   With the rapid development of digital technology in all walks of life, the field of professional stage lighting will gradually enter the era of comprehensive digitalization. At present, large-scale outdoor performance activities in China: such as square parties, large and medium-sized individual concerts, and indoor large and medium-sized stage plays (including studios) used in professional lighting equipment, such as digital dimming consoles, computer light control centers, and digital silicon boxes , Computer effect lights, computer color change lights, follow spot lights, computer color changers, laser lights, etc., most of them adopt digital control.

At present, computer lamp technology is in the era of digitization and networking, and users’ requirements for safety, stability, scalability and ease of use are also increasing. Portable, multifunctional, intelligent, and information management integration has become the user’s Pursuit and first choice. In the studio or performance venue, all lighting operation control equipment can be connected to the controlled equipment through a network workstation. Use TCP/IP Ethernet network technology, or use a combination of TCP/IP Ethernet and traditional DMX control technology to control the entire lighting system.

   The successful application of technologies such as networked lighting, networked control equipment, networked management software, automatic alarm system, multi-network integration, sound and light synchronization in some large-scale projects at home and abroad in recent years has brought new business opportunities for professional lighting companies. In the domestic professional computer lighting market, the demand will continue to increase year by year.

  5 holographic projection technology will become the "new favorite" on the stage in the future

   With the development of science and technology, consumers' requirements for display effects are particularly prominent. The strong sense of space and perspective of holographic projection technology is the most attractive part of this technology. It is expected to become the ultimate display solution beyond the current 3D technology. In addition to entertainment applications such as three-dimensional movies, televisions, displays, bars and KTVs, holographic projection technology can also be used in many social aspects such as microscopy, interferometrics, projection lithography, military reconnaissance and surveillance, underwater detection, etc. The development prospects are undoubtedly very impressive.

   Throughout the history of the stage, the success of stage performances is all integrated with the progress of technology. Mankind has transitioned from the age of phonograph, record, and radio to the age of MV, TV, and the Internet. Nowadays, stage technology has been able to combine virtual and reality to allow people who cannot be present to perform together with real actors. All this is due to technology. charm. The holographic projection technology subverts the traditional stage acoustic and optoelectronic technology, and it brings people the dream three-dimensional experience, just like the wide application of LED displays on the stage, it will also become the "new darling" in the lighting stage technology industry in the next few years. .

  6 High-end technology research and development lags behind the international level, school-enterprise cooperation becomes a talent introduction channel

  The threshold of stage lighting technology is low, and there is no strong technical requirement to enter this field. Most of the R&D companies engaged in stage lighting in my country are small and medium-sized enterprises. At present, most companies still stay at the level of imitation and have not mastered the core technology. LED technology, which is currently popular as a trend, also originated from abroad. The core technology, process and related rules are controlled by foreign companies. There are very strict technical barriers and patent cross agreements. Chinese companies need a lot of related technologies to develop related technologies. Manpower, material resources and resources, without core technology in hand are the weakness of Chinese professional lighting companies. Chinese companies are now catching up with world-class manufacturers. They are the rule-makers, while Chinese companies are only participants.

  To change this dilemma, we must first start with the fundamental “talent”. Fortunately, many Chinese enterprises have begun to attach importance to the introduction and training of technical talents. Judging from the employment positions provided by employers, in addition to graduates in dance, music and other majors, many units have a relatively large demand for talents in stage art setting design, lighting and sound control, field affairs and stage supervision, and ticketing. Many companies not only rush to select talents, but also sign agreements with colleges and universities to jointly build training bases to institutionalize future school-enterprise cooperation. (Article source: HC Audio and Lighting Network, original title: Market Observation: Analysis of the Development Trend of my country's Stage Lighting Industry)

6 major development trends of the stage lighting industry