Counting the most cutting-edge technology of LED lighting

LED lighting is gradually used in various fields because of its high luminous efficiency, low energy consumption, long life, and low light decay. Over time, the market has also presented new challenges to LEDs. Intelligent lighting, environmental sensitization design and intelligent modularization have become the mainstream trend of LED development.

1. Intelligent control technology

LED intelligent lighting into the main development direction of future lighting technology

The biggest advantage of LED is its controllability. The full expression of LED lighting energy-saving concept, the realization of digitalization and the value added outside of lighting are inseparable from the support of intelligent control system. At the same time, the intelligent control system can completely eliminate the ambiguity of traditional lighting definition and promote the transformation of the green lighting industry. Especially for some LED enterprises with long-term strategy, the intelligent control field of LED lighting means more realizing the core competitiveness of enterprises and getting rid of the “blue ocean” of market “homogeneous” competition and price war.

Duan Jingyuan from the Institute of Semiconductors of the Chinese Academy of Sciences in the report entitled "LED Lighting Intelligent Control Application Demand Analysis and Major Technical Difficulties" clearly stated: "LED is not a traditional light, it needs an intelligent system to match its potential, subverting the concept of traditional lighting. He said: LED lights make our world more energy efficient, and the combination of LED light communication and control methods may be more convenient and greener. The LED light can transmit the modulated signal through the light transmission network signal and the control signal to complete the transmission of information and instructions. In addition to connecting to the network, LED lights can also act as commanders for a variety of household appliances.

Li Zili of Guangdong Lighting Society said in the report "Development and Formulation of LED Intelligent Control System Standards" that intelligent lighting and lighting systems are classified into non-universal lamps and intelligent lighting systems and versatile products and intelligent lighting systems according to their versatility. Among them, the versatile products and the intelligent lighting system between the enterprises and the intelligent lighting system can replace each other, the technology is more complicated, for the convenience and versatility, the instruction definition, format and process for unifying various functions are specified. In the case of LED street lamp centralized DC power supply intelligent lighting system, the LED street lamp centralized power supply intelligent control system adopts a microcomputer controller to detect the power source in real time, and simultaneously connects the real-time remote signal, telemetry and remote control through the communication with the host system.

2. Optical heat dissipation and reliability technology of lamps

Application of gold-like stone in LED heat-conductive circuit board

Japan is an important global LED industry base. Its technology level and output value are ahead of other countries, and it holds most of the LED high-end market. In terms of LED standards, Japan is also ahead of other countries, and it has earmarked the testing standards for white LEDs. In order to enter the Japanese market, LED lighting products must first meet the requirements of the Electrical Appliances Safety Law and its related implementation regulations. At present, the LED products are mainly controlled by the Electrical Appliances Safety Law. If the power supply is external, it must be tested according to J61347-2-13 (JIS C 61347-2-13). Diamond PSE logo. In terms of electromagnetic compatibility, it is necessary to meet the mandatory J55015 standard.

From July 1, 2012, LED bulbs and LED light fixtures sold in the Japanese market will become the subject of the "Electric Appliances Safety Law" and a circular PSE mark will be added. The range of regulated LED products is limited to LED lamps and bulbs with rated voltages of 100 to 300 V. Rated powers greater than 1 W using 50 Hz and 60 Hz AC circuits. Some desk lamps, rechargeable flashlights, advertising lights, decorative lights, portables, gardens, etc., although LEDs are used as light sources, are not classified as "LED lamps." At present, there are only one provincial order for the safety and electromagnetic compatibility standards for Japanese LED product certification, and the two provincial coordination standards have not yet been introduced. Therefore, the IEC standards related to LEDs are not covered by the Electrical Appliances Safety Law. Starting from July 1, 2012, the most feasible and cost-effective method is to manufacture LED bulbs and LED lighting fixtures based on the technical standards of the Japanese Provincial Order.

3, the latest trend of epitaxial chip technology and equipment materials

At the "2013 New Century LED Summit Forum" Technology Summit III "The Latest Trends of Epitaxial Chip Technology and Equipment Materials", Mr. Wang Jiangbo, Assistant President of Huacan Optoelectronics R&D Manager, discussed the key technologies of LED epitaxy and chip under high current applications. "I delivered a keynote speech. For the key technologies to achieve LED quality, such as epitaxial technology, chip technology, packaging and phosphor technology, these four aspects are also closely related to efficiency, chip-related power conversion efficiency, phosphor conversion efficiency, light efficiency, and high quality. LEDs must be improved in terms of efficiency.

LED epitaxy and chip key technology in high current applications

Mexico's LED lighting safety requirements are mainly regulated by the NOM-003-SCFI-2000 standard. This standard relates to the safety requirements of electrical products. It is a framework specification and does not specify specific technical requirements. It must pass the NMX-J-521/1-ANCE-2005 standard test, which is mainly based on IEC 60335-1. : Safety of household and similar electrical appliances + Mexican bias. At the same time, LED lighting products must meet the consumption information required by NOM-024-SCFI-1998.

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