1. Overview of LED development:
Over the past 180 or so years, the lighting industry has developed into a mass-produced industry based on standardized luminaires, while also experiencing: 1. Filament bulbs (incandescent); 2. Gas bulbs (fluorescent) 3, semiconductor light-emitting (LED) three eras. Consumers themselves often replace short-lived in-use products with the same new products. This trend is the driving force behind the development of our lighting industry.
With the development of science and technology, LED chip manufacturers such as Nichia, Cree, Osram, Philips, Seoul Semiconductor, Epistar... have promoted the rapid development of LED lighting technology from different aspects, and at the same time Provides lighting manufacturers with a good opportunity to completely change the industry model. The key technical indicators that affect the use of the film and television industry: light efficiency, color temperature, color rendering index, etc. have also been improved by leaps and bounds.
Several professional enterprises headed by Guangdong Huachen Film and Television Stage Professional Engineering Co., Ltd. also actively responded to the relevant national policies and invested huge amounts of money in the research and development of LED film and television professional lamps. After ten years of sharpening a sword, LED professional lighting fixtures for film and television stage finally came into being. With the use of a large number of national, provincial and municipal TV stations (radio stations) such as CCTV, Hunan TV, Tianjin TV, and China Central People's Broadcasting Station, the application climax of LED film and television lamps has been set off all over the country. At present, the LED spotlight, LED flat panel soft light, LED computer moving head light, LED sky and earth curtain light, LED effect dyeing light, LED imaging light and other lamps on the market can completely replace traditional lamps and apply to various conferences and studios.
Second, the advantages of LED lamps:
1. High light efficiency:
The luminous efficiency of LED light source is as high as 150lm/w, which is 5 to 8 times that of halogen tungsten light source.
2. Very low infrared radiation:
The extremely low infrared radiation of the LED light source is a cold light source, which can significantly improve the working environment of the studio.
3. Long life:
The lifespan is up to 30,000 hours, which is more than 150 times that of halogen tungsten light sources.
4. High security and stability:
LED lamps are solid luminescent cold light sources, which are safe and reliable to use, and there will be no safety hazard of broken tungsten halogen bulbs. At the same time, the LED lamps can quickly respond to the control system without delay.
5. Green environmental protection:
No heavy metals are used in the production process of LED lamps, no heavy metals will cause pollution, and they are green and environmentally friendly light sources.
3. Analysis of economic benefits of applying LED lamps:
1. Energy saving (taking the comparison of LED spotlights and tungsten halogen lamps as an example):
The luminous efficiency of LED lamps is relatively high. The luminous intensity of 200W LED lamps is equivalent to 2KW tungsten halogen lamps. If each lamp runs for 10 hours a day, only one lamp can save electricity every year: 1.8(KW)*0.9*10* 365(h)*1.36 (yuan/KW·h)=5913 yuan
At the same time, because the LED has almost no infrared radiation, the heat generation of the lamp is greatly reduced, and the studio's requirement for the cooling capacity of the air conditioner is greatly reduced, which will further reduce the power consumption.
2. Improve the working environment:
The 2KW tungsten halogen lamp produces 1600W of infrared radiation when it works, and it will produce a strong burning sensation when it is irradiated on the broadcaster for a long time. The 200W LED spotlight produces almost no infrared radiation, which greatly improves the working environment of the studio.
3. Low maintenance cost:
LED lamps have a light source life of up to 30,000 hours, which can be said to be a maintenance-free lamp. The lifespan of tungsten halogen lamps is only about 200 hours, and 10 lamps need to be replaced every year at a cost of 700 yuan. However, LED lamps do not have this cost. Considering the manpower and material resources required for maintenance, the maintenance cost will be more saved.
4. No need for dimming silicon box and corresponding cables:
All LED lamps use DMX512 signal and local dimming control, eliminating the need for dimming consoles, silicon boxes and corresponding cables. At the same time, the capital investment of cable tray and power supply system is reduced.
5. Simple construction:
Because the LED lighting is controlled by the built-in DMX512 receiving module, and its low power consumption characteristics, the design and construction of the LED lighting scheme are very simple. The entire studio only needs to lay a few straight-through cables and a few DMX signal cables to connect all the The LED lamps can be connected in a daisy chain.
To sum up, the overall investment of a studio system using LED lighting solutions is basically the same as using traditional lighting solutions. Some can make up for the extra capital invested in the initial stage in just 6-8 months.