Performance characteristics:
At present, the relatively mature realization technology of white LED is blue LED+ yellow YAG phosphor. The yellow light generated by excitation of the phosphor is complementary to the blue light originally used for excitation to generate white light. The basic structure of LED is electroluminescent semiconductor material, and its emission spectrum depends on the characteristics of the selected semiconductor material. The color temperature of the light source is determined by the spectra of LED and phosphor. Therefore, in the process of current modulation dimming white LED light source, the color temperature will not change obviously. This characteristic of white LED is very popular in occasions that require high color temperature stability, such as film and television shooting scenes. On the occasion of paying more attention to the expressive force of stage art, the lamps used by the lighting staff of Wumei have long been halogen tungsten lamps. Its characteristic is that when the stage lights dim, the light color and color temperature of the light source will change accordingly, indicating that the relative energy distribution of its spectral radiation has changed.
Methods of performance improvement:
Thermo-optical attenuation is one of the characteristics of LED devices. When the temperature rises above a certain value, its light efficiency drops sharply or seriously, leading to premature failure of the whole LED. Therefore, good heat dissipation design is a necessary condition to ensure the performance and life of high-power LED lamps. In practical application, the heat dissipation design based on heat pipe technology should be adopted. Heat pipe technology can quickly conduct heat to aluminum fin radiator, and cooperate with silent axis fan to quickly discharge the heat energy generated when LED works. Because the light output of high-power LED chips is mostly Lambert distribution, 50% light intensity angle is 120 degrees, which can not meet the light distribution requirements of stage professional lamps.
The stage function lamp needs to control the light distribution, and different lamps have different requirements on the beam angle, so it is necessary to carry out secondary optical design on LED. It is mainly necessary to use optical elements to effectively change the light intensity distribution of LEDs to meet the design requirements of lamps.
Manufacturer information:
Zhongshan henglan town Mingjia Lighting Appliance Factory: Zhongshan henglan town Mingjia Lighting Appliance Factory is a professional lighting production company integrating R&D, production and direct sales, with a complete and scientific quality management system. The integrity, strength and product quality of henglan town Mingjia Lighting Appliance Factory in Zhongshan City have been recognized by the industry.
Zhongshan Guzhen Yifei Lighting Appliance Factory: Zhongshan Guzhen Yifei Lighting Appliance Factory is an emergency power supply specializing in the production of fire emergency lighting, emergency evacuation sign lights, export emergency lights and emergency ceiling lights? LED emergency balloon? T8LED integrated intelligent emergency support, LED colorful magic ball stage lights, LED bulb lights, COB downlights, LED panel lights, LED flat lights and other products are professional production and processing companies, with a complete and scientific quality management system.
Color photo xinxi lighting factory: Guangdong Shenzhen "color photo xinxi lighting factory" (Kolis) is located in the famous lighting capital of China? -? Guzhen, the factory department is located in Gangnan Industrial Zone, Guzhen Town, Zhongshan City. Since the establishment of 20 10, the factory has always adhered to the principle of quality first, created the first diversified sales model in Guzhen to promote large-scale wholesale with small-package retail on the Internet, and has been constantly improving and improving.
Above, we introduced some knowledge about led stage lighting. First of all, we introduce the characteristics of led stage lighting, which determines why this kind of light is different from other ordinary lights and becomes a frequent visitor on the stage. Then it introduces the methods to improve the performance of led stage lighting, because the stage cannot be replaced at any time, so it should be upgraded on the basis. Finally, some manufacturers that produce and sell led stage lighting are recommended. Interested buyers can refer to this information.