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Major advances in semiconductor interior lighting applications

In support of the National 863 program, Nanjing Henderson Polytron Technologies Inc assumes the low color temperature and high color application technology of semiconductor lighting and color products industrialization "project, has made significant progress in the indoor classroom, hospitals and other general lighting with the technology of the high power white LED industry.

In the domestic chip and phosphor materials on the basis of the topic through the two optical integration technology research and efficient cooling system of LED device, drive circuit, and enhance the heat dissipation capability of non directional LED light source in a finite volume and light uniformity; through the optical simulation software to establish the LED indoor lighting optical design model and obtained the best effective lamp light effect; through the research on the small size of the power supply of electromagnetic compatibility and low power factor problems, the development of high reliability and high efficiency LED drive power and intelligent dimming power supply, the integration of the lamp power source has passed the EU CE certification; LED lighting technology COB package, the package of high power LED chip on the metal base circuit board, integrated power type LED chip, connection circuit and radiator in one, to solve the transfer High power LED is a complex structure, high cost, difficult to automate the manufacturing process.

Through the implementation of the subject, the development of COB white LED light efficiency reached 100.96lm/W, the overall efficiency of the warm white light lamp reached 70.14lm/W. The research results of this paper are of great significance for the promotion of the "ten cities" project.

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