Guangzhou Light Investigation Report

Research Group: Wang Jingchi, Lin Peiqun, Zhong Guohong, Liu Jianwei, Qin Xiaogang, Bai Wenguo

From April 12th to 15th, the China Lighting Society's stage film and television lighting professional committee formed a research expert group, successively to Guangzhou Zhujiang Lighting Technology Co., Ltd. (hereinafter referred to as "Zhujiang"), Guangzhou Hedong Electronics Co., Ltd. (hereinafter referred to as "Hedong" ), Guangzhou Haoyang Electronics Co., Ltd. (hereinafter referred to as "Haoyang"), Guangzhou Siquande Lighting Co., Ltd. (hereinafter referred to as "Squande"), Guangdong Huachen Film and Television Stage Professional Engineering Co., Ltd. (hereinafter referred to as "Huachen") Seven companies including Guangzhou Dehao Lighting Industry Co., Ltd. (hereinafter referred to as “Deyi”) and Guangzhou Yajiang Optoelectronic Equipment Co., Ltd. (hereinafter referred to as “Yajiang”) conducted visits, inspections and research activities.

Through visiting companies, discussing with entrepreneurs, and in-depth and in-depth exchanges with engineering and technical personnel, the expert group has further understanding of the development history, business philosophy and technical characteristics of the main products, and the latest in lighting equipment in the stage film and television field. The state of the art, the development of cutting-edge technologies, and the technical performance of the best products have gained a better understanding. The most fundamental thing is to strengthen communication and understanding between users and production enterprises through visits and exchanges, which is of great significance to the healthy development of the industry.

This survey has visited more companies, and each company's main products have their own characteristics. In order to make the report more readable, we write according to the three main lines of conventional lamps, computer lights and control and hanging.

Conventional light fixture

None of the companies in this survey continued to produce and sell lamps with traditional light sources (except for follow-up lights), and the production and application of conventional lamps for LED light sources grew rapidly.

The production and application capabilities of LED light source application technology, heat dissipation application technology, drive application technology, intelligent color management technology and remote fluorescence have been further improved. LED light source conventional lamps have greatly improved the light quality, light efficiency and performance, and have a large number of patented technologies and products with independent intellectual property rights.

1. LED lighting efficiency improvement

According to the company's introduction and data provided, as well as the expert team's on-site test estimates, the luminous efficacy of LED luminaires is basically greater than 50 lm/W, and some of the more efficient luminaires have exceeded 100 lm/W. According to this calculation, a 200W film spotlight can provide at least 10,000 lm of luminous flux. This value has reached or exceeded the luminous flux level of the original tungsten light source 2000W luminaire. In other words, as long as the design of a reasonable 200W LED film and spotlight can fully meet the requirements of the use of 2000 square meters or even more TV studios. At the same time, some high-power lamps can solve the problem of high-power remote surface light in the theater, such as Hedong Baxter's 400W spotlight, Yajiang 420W imaging lamp, etc., allegedly 30m distance, 3200K color temperature, illumination greater than 1000 lx, 5600K color temperature, illumination More than 1200 lx.

2. LED light quality improvement

In addition to the improvement of light efficiency, the color quality of LED lamps is also greatly improved, the color temperature can be made very accurate, the color rendering index can be made very high, and the consistency can be very good. In the past, we did the requirements of the Ministry of Culture and the State Administration of Radio, Film and Television. It is indeed too low, this is the opening remarks of Deyi technical director Ai Yuanan during the exchange. Indeed, while these technical indicators have improved, companies are pursuing high light output quality, ie high light quality. Whether it is the uniformity, consistency, controllability of the spot, or the linearity and starting point of dimming, there has been a great improvement.

3. Thermal design and application of new cooling technology

The bottleneck that has long plagued the development of LED high-power lamps is the heat dissipation technology of lamps. In this survey, most companies have used new high-tech cooling technology. Such as Haoyang and Brilliance's fanless cooling technology (heat pipe convection heat dissipation), Deyi and Yajiang's heat sink and shell as one of the cooling technology, liquid cooling technology and so on. The luminaires have excellent performance in LED junction thermal control technology and heat sink temperature control. It is said that the temperature of the radiator can be kept below 58 °C under long-term operation, which solves the temperature drift caused by the instability of the LED lamp, further improves the stability of color temperature and illuminance, and reduces the noise problem of heat dissipation; It can install higher light efficiency and more powerful light source in a certain three-dimensional space.

4. Intelligent Color Management System (HSIC)

Yajiang has solved the problem of color temperature, color rendering index, white light and color consistency of LED lamps by establishing intelligent color management system (HSIC); the application of color temperature fine-tuning technology of Deyi, Yajiang's fine-tuning channel setting, It can well solve the problem of consistency adjustment of color temperature deviation due to different usage time of different types of lamps or the same type of lamps, and can realize user-adjusted correction.

Yajiang multi-color mixed white light application technology makes full use of the color advantages of LED light source, not only can provide more perfect spectral effects, richer color requirements, but also can provide white light of 2700-8000K color temperature, Ra>90.

5. Remote fluorescent panel technology

The large-scale application of the remote fluorescent plate technology in the soft light lamp overcomes some shortcomings of the traditional LED white light source, reduces the influence of the heat of the LED light source on the fluorescent material, and provides the user with a more stable color temperature, higher performance of the index finger, and better light quality. High LED luminaires. In this survey, all companies producing film and television flat-panel soft lights have introduced high-efficiency, energy-saving and high-light remote fluorescent panel lamps.

6. Ingenious light path design

Haoyang has better solved the problem of color temperature change during zooming of LED spotlights through clever optical design.

Yajiang overcomes the chromatic aberration caused by multi-point light source through precise optical path design, and can provide uniform spot effect. The light output with the lens PAR lamp becomes a luminaire that fully reproduces the spot and beam effects of a conventional package. SUPERNOVA-SS352XCEM is the first in China to introduce a single-gloss high-power LED PAR lamp, returning to a single-gloss surface, using a high-efficiency optical system with a linear zoom function of 4.5°-45°.

The special function of the flat-panel soft light produced by Zhujiang in the light effect, deformable and combinable assembly has also been well received by the panelists.

7. Humanized design that meets specific conditions of use

In order to meet the needs of various types of video recording equipment, especially for high-speed photography, most enterprises have realized the controllable design of the modulation frequency of LED lamps. Haoyang also specially designed LED luminaires with variable modulation frequency to meet the requirements of different environments.

The Deco car show light has a small volume and light weight, only 5.3kg, the output luminous flux can reach 50,000 lm, and the 7m measured illuminance can reach 11000 lx illuminance. It belongs to a product that attracts attention.

According to the characteristics of the studio lighting, the electronically controlled action film and spotlight designed by Brilliance can realize the action (shaking, tilting, zooming) control and dimming control on different consoles, and can also be controlled according to the needs. It meets the actual needs of large and medium-sized TV studio lighting control.

8. Thinking and suggestion

With the rapid development of LED technology, the era of conventional lamps that replace traditional light sources with LED light sources has arrived. However, the core of LED light source technology, module packaging technology, thermal conduction technology, and most of the driving technology are from foreign companies. In this respect, we need to pay attention to our enterprises and break the bottleneck as soon as possible. The advancement of technological development cannot be stopped. We hope that more LED technology with intellectual property rights will come from the mainland to achieve true Chinese creation.

For the conventional LED light source with new technology, the members of this expert group have given high praise, and also put forward their own opinions and suggestions for some products. Experts in stage lighting have pointed out that the pursuit of stage lighting and TV lighting is different. Therefore, the requirements for lighting are not the same. The lighting required on the stage does not need to be as soft as the studio. The hard light lamp will have more effect on the stage. Sometimes the uniform average illumination is not needed on the stage, but a single lamp can achieve a wide opening angle, high illumination, and illumination. The smaller the body area, the better, which will create a better stage lighting effect. The traditional light source backlights we used in the past have been eliminated due to their low light efficiency, but some of its stage lighting effects are still favored by designers. Then, LED conventional lamps can also make lamps with a stage effect similar to the backlights while saving energy, environmental protection and low carbon. This requires the joint efforts of the manufacturers and users of the lamps. Manufacturers should also have a variety of bias when producing lamps. Starting from the basic situation of China, the habit of using light, and referring to the characteristics of famous foreign brands, we have developed different lamps suitable for stage performance and suitable for TV recording. I hope that the manufacturers will further improve and provide users with more perfect products.

Computer light

Computer lights are one of the most intelligent professional lamps. In this research, Zhujiang and Haoyang are mainly engaged in the production of computer lights. Deyi and Yajiang also have their own advantages in the production and development of LED shaking head dyeing computer lights. Their various smart lamps are on the international stage, competing with international brands, offering a wide range of choices for various types of performances and urban lighting projects.

Pearl River

Zhujiang is a national high-tech enterprise specializing in performing arts and lighting. The Pearl River trademark has been recognized as a famous trademark in Guangdong Province, and Zhujiang products have been awarded the title of Guangdong Famous Brand Product. Zhujiang Lighting has undertaken a number of scientific and technological support projects of the Ministry of Science and Technology and the Ministry of Culture, and successfully passed the inspection and acceptance. In 2014, it was included in the key high-tech enterprises of the Torch Program. Participated in the drafting and formulation of a number of industry standards such as "Test Methods for Performance Parameters of Computer Lighting at Performance Venues". As a leading enterprise of intelligent lamps, Zhujiang Lighting has a history of more than 30 years and has obtained more than 100 domestic and foreign patents. Its own brand PR products have been exported to more than 100 countries and regions around the world.

The newly developed XR330 (BWS) PR-2352 computer light from Zhujiang is a 3-in-1 product. The three effects of beam, pattern and dyeing can be arbitrarily selected. The color plate is 13 colors (including CTO) + white light, and the independent CMY system is infinitely mixed. When integrated with CTOs and color plates, the colors produced are very rich, and the PR-2352 is very lightweight and weighs only 22.2Kg. It is well known that when the lamp is in the CYM state, its power will be reduced. Otherwise, the temperature will be too high, the heat dissipation effect will be poor, and the service life of the lamp will be affected. The PR-2352 achieves the standard of full power. This lamp has a uniform spot system that allows the luminaire to be switched between two modes, beam and pattern. The uniformity of the luminaire leads the industry. In addition, the luminaire adopts 8+16 superimposed prism combination, which can realize the beam or pattern effect of any combination of various prisms; it can also realize independent rotation of each prism after superposition.

2. Hao Yang

Haoyang is a company specializing in professional stage lighting, LED performing arts lighting, high-definition display, commercial art lighting and other performing arts and cultural equipment and performing arts stage comprehensive solutions. The company has been developing for 20 years, and the company has always adhered to the enterprise development policy of “culture and technology integration”. The independent brand “TERBLY” of performing arts lighting products has enjoyed high popularity in the world, and products and services have entered. In more than 80 countries and regions around the world, the company was included in the Torch Program's key high-tech enterprises in 2014, and at the end of the same year, the Ministry of Culture awarded the “National Cultural Industry Demonstration Base”.

Haoyang's 3-in-1 hybrid Almighty King G12HYBRID is a self-developed pattern, dyeing and beam 3-in-1 computer light. It has successively obtained the "stage light optical system for switching between pattern and beam effect" and "hybrid optical integrator assembly". Six national patents, such as its optical system, also won the first prize of professional lighting category of PALM 2014 Product Technology Progress Award. The luminaire adopts a unique dual optical path structure design, which utilizes the ingenious combination of optics to achieve flexible switching between the beam mode and the pattern mode, which can project a strong sharp small angle beam at long focal length and long distance. At the same time, it can display the high uniformity pattern effect of spot ≥0.9 in short focal length and close distance. From the root, it breaks through the technical bottlenecks such as the blurring of the beam edge and the uneven pattern spot in the 3 in 1 computer lamp on the market. The luminaire is equipped with a high-precision stepless CMY color mixing control system. By optimizing the CMY control mode, the high-precision control of the color is realized, and the phenomenon of jumping and flickering is effectively avoided while ensuring linear uniformity of the color.

3. German

Desheng was established in 2002. The self-owned brand “VIKY” has developed into a well-known domestic and international lighting brand. The products cover “three areas of professional stage film and television lighting”, “architectural lighting”, entertainment and entertainment lighting, and have successively obtained “Guangdong High-tech Technology”. The enterprise "Huadu District High-tech Enterprise" and "Guangzhou Science and Technology Small Giant Enterprise" and other honors have won more than 100 national patents and several outstanding patent awards in the province and city.

The exchange of China and Germany introduced us to a newly developed high-power multi-function LED moving head dyeing lamp with independent intellectual property rights. Since the manufacturer still needs to keep confidential, the technical parameters are inconvenient to disclose, we will wait and see.

4. Yajiang

Yajiang is the earliest enterprise in China to make professional stage LED lighting, with more than 30 years of manufacturing experience. It is a high-tech enterprise specializing in R&D, production and sales of high-power LED lighting and stage performing arts products, a national intellectual property advantage enterprise, and a provincial and municipal famous brand enterprise. It is the leading enterprise in China's first high-power LED PAR lamp and LED pattern moving head lamp. Its two well-known brands "SILVER STAR" and "ARCTIK" cover cultural performances, theaters, film and television lighting, architectural landscape products. Yajiang Optoelectronics has established cooperation institutions with Tsinghua University, Sun Yat-Sen University, South China Institute of Technology, Central Academy of Drama, Shanghai Theatre Academy and many other universities, and has undertaken a number of national, provincial and municipal science and technology innovation projects, with more than 300 Patent certification, participation in the drafting and development of a number of national standards and industry standards. Many classic cases such as “Eiffel Tower in Paris, France” and “Shanghai Oriental Pearl Tower” have made Yajiang Optoelectronics famous in the world, and have played a role in the recent G20 projects “Hangzhou Olympic Sports Main Stadium” and “Hangzhou Olympic Sports Expo Center”. Outstanding.

In addition to the LED PAR lamps and 300w high-power LED color imaging lamps described in conventional luminaires, Yajiang's other new products show excellent performance, easy operation, and obvious advantages in light efficiency and color mixing. Yajiang is dedicated to the production and research and development of LED lamps, and has made in-depth understanding and research on the core application requirements of LED lamps. It is also constantly introducing computer lights for LED light sources, which are fully comparable to traditional light source lamps. The revolutionary technological changes caused by LED light sources will drive a qualitative change in the stage lighting throughout the industry.

5. Summary

Due to space limitations, here are just a few of the individual cases provided by the manufacturer. Through research, we believe that the development of computer lights has the following trends:

1) Power small size, small weight and light fixtures have become mainstream products, and the use of high-power lamps is becoming less and less;

2) One-lamp multi-function lamps (such as 3-in-1 computer lights) are hot spots for production companies, but single-function lamps still have their own advantages, and some functions are irreplaceable by multi-function lamps;

3) LED light source computer lights have gradually matured, but there are still some technical problems that need to be overcome to truly replace traditional light source lamps;

4) The production process, product quality and design and development level of computer lights have been greatly improved, but the ability of independent innovation is still lacking;

5) In the development of LED light source computer lights, the company has invested a lot of energy, can use the characteristics of LED light source to develop very good and practical lamps, but in the early research and demonstration, we must increase the intensity and less detours.

Control and hanging

The hanging system is a major component of the TV studio lighting project. The system's good or bad, directly affects the success and failure of studio lighting projects, and is related to the quality of TV production. Lighting control is one of the core elements of the lighting system. In this survey, we visited three engineering companies in Hedong, Siquande and Huachen to find out.

Hedong

Hedong was established in 1985 and is famous for its professional film and television stage lighting and mechanical hanging systems. In the 30 years of deep farming, Hedong has provided various solutions for film and television stage lighting, mechanical hanging projects, smart home and intelligent building control. Its products have been successfully used in TV stations, theaters, large public buildings, communities, buildings, homes, hotels, In tens of thousands of cases, such as landscape lighting and yachts. It has formed three major solutions of HDL-STAGE all-fiber stage lighting network control system, HDL Buspro building intelligent control system, HDL-KNX residential and building intelligent control system, involving more than 300 products and applying for more than 60 patented technologies. It has become the standing director and member unit of 43 famous domestic and foreign industry associations and academic groups and 11 teaching and research practice bases in universities. Participated in the formulation of many domestic industry standards such as the DMX512-A Data Transmission Agreement of the Ministry of Culture, and joined the ESTA organization's famous ACN Network Standards Working Committee as an international observer to participate in the drafting of standards.

Hedong specializes in film and television stage lighting control and hanging system, pays special attention to the safe operation of the system, emphasizes the importance of the work of the "safety standards for performance venues", and believes that the standard promotes the overall safety level of products and systems in the industry, and regulates the performance venues. Safety management and other aspects play a positive role. Hedong's current main business products: Buspro intelligent control products, KNX intelligent control products, KNX dimmer / 6 way 1A, wireless products, smart items, stage lighting, stage machinery, electric lifting rotary boom. Stage lighting control In the rapid development of modern technology, technical problems such as system out-of-synchronization, delay, etc. that have not been broken before have been solved, and multimedia acoustic-optical linkage demonstration system came into being. Hedong is a new product developed by the National Science and Technology Supporting Project "Development and Integration of Sound and Light Imaging System for Four-Dimensional Space Acrobatics Stage" - the intelligent safety monitoring and management system for performance venues has a positive preventive significance for the safety of stage performances. The system's functions include: security monitoring, centralized management, visual management, data analysis and statistics, energy consumption report management, WeChat SMS alarm, historical data storage and traceability, and strong third-party compatibility. Through this system, you can see the real-time monitoring of the scene, as well as the operation of stage lighting, LED large screen, audio, machinery and other equipment. The system can also seamlessly connect with different subsystems including large outdoor lighting, LED screens, projectors, audio and video control systems, saving energy maintenance costs. The system has been successfully applied to indoor and outdoor projects on both sides of the Pearl River.

In recent years, Hedong's innovation and application in the studio lighting hanging system has been recognized by everyone, and revealed the new product to be displayed in the industry exhibition in August---360o omnidirectional rotating lifting and lowering boom, this product is currently The patented product used in the 1200 square meter studio project of Zhejiang International Film and Television Center. Its technical highlight is that the boom can be lifted and translated, and the 360-degree rotating boom is added to make the lighting angle adjustable and the lighting easy and flexible.

From the user's point of view, the research team fully recognized the technological innovation advantages of HDL, and believed that Hedong has done a very good job in the professional film and television stage lighting, technical innovation of mechanical hanging systems. Everyone unanimously expressed their support for the innovation and development of domestic brands and national industries, and put forward many good suggestions from the user's point of view. He hoped that Hedong could play its own advantages, expand product varieties, and adapt to the requirements of different lighting control fields. Detail design, making innovative, differentiated, and personalized products.

2. Squande

Siquande is a professional manufacturer and system engineering company engaged in the research, development, production and sales of stage film and television lighting and environmental intelligent lighting equipment. It has passed ISO9001: 2000 quality management system certification. The brand has TINHAO and FLYGEKO. The products have passed CE and other safety and environmental protection system certification, and are sold at home and abroad. It is one of the domestic high-end products that users prefer. The company has developed the "zero-off protection technology", "wireless network light signal transmission technology", "sine wave / fiber / network / intelligent control technology", etc. are the first in China and live at the international advanced level. The company is authorized to represent a number of imported brand lighting equipment in China. It is a strategic partner of the Dutch Philips (PHILIPS) film and television performance lighting and the Portuguese market of maquinas film and television stage machinery.

The Macina variable studio hanging system adopts the German DIN 15 560-46 and the stage film and television boom device ZBJ8011-88 standard. While maintaining the advanced technology of the product, the pursuit of reliability is the most reliable, practical and durable. The perfect unity of functionality, practicality and elegance. Its self-developed patent-protected shaft movement technology allows the wire rope to be kept at a 90-degree angle with the pulley and the drum forever during use, reducing the friction between the wire rope and the rope groove, greatly improving the safety and durability of the product. The hanging system can be horizontally moved, lifted and rotated, and can be rotated 360 degrees. Various combinations can be changed according to the needs of the performance, and the operation process is safe and stable without any jitter. The system has been used in the 1600 square meter studio of Guangdong TV.

In order to better serve the users, the company proposes to develop the "after-sales maintenance standards" of the industry, standardize and standardize after-sales service, let users feel the sincerity of the service of the manufacturers, increase the user's stickiness, and at the same time greatly enhance the brand image of the company.

3. Brilliance

Brilliance is an integrator of professional film and television stage engineering and a manufacturer of film and television stage lighting equipment. It has a large number of outstanding talents who have been engaged in professional and technical work in the film and television stage for a long time. Over the years, the company based on the professional lighting engineering and acoustic decoration engineering of the film and television stage, led the stage machinery, sound reinforcement system, process air conditioning, control room and other professional supporting projects, and improved the "engineering integration" industry chain. In recent years, Brilliance has devoted itself to the research of the core technology of LED film and television stage lighting, and has made a series of breakthroughs to create four series of LED point light source lamps, multi-particle lamps, LED lamp consoles and engineering products. . At present, the company has two pillar industries of engineering construction and product manufacturing, adhering to the business philosophy of “honesty, service first”, relying on scientific management methods, advanced technical means and excellent elite team to provide customers with comprehensive Excellent technical service.

The digital three-dimensional composite boom is a studio hanging equipment newly developed by Brilliance. It completely breaks through the traditional form of the boom, and has the functions of rotation, lifting, and translation, which truly realizes the three-dimensional movement of the stage boom. The product is compact in structure, easy to install and use, easy to maintain, and has multiple safety protections to ensure safe and reliable program production. It can improve the flexibility of the stage and studio layout, the flexibility and convenience of lighting, and is efficient and practical, and can meet the technical requirements of real-time operation during the performance. This is also difficult to achieve with other products, and can even be said to be technical requirements that cannot be achieved by similar foreign products. Brilliance's hanging product research and development has a sense of innovation, and the product has a good response in practical application, which is trusted and affirmed by users.

Conclusion

This research activity lasted for four days, and everyone continued to work hard to express their gratitude. The survey not only strengthened the communication between experts and enterprises, but also provided opportunities for exchanges between experts. Experts say that this method is a hundred times more powerful than in a noisy, noisy exhibition environment. This approach is a real technical exchange. In the past four days, we have reviewed the development history of the industry and discussed the future development trend of the industry and the problems and solutions facing the industry. Everyone agrees that the industry needs to improve the industry standard system. In the future, only professionalization and professionalism are the development direction of enterprises and employees.

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