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摘要
This paper presents a novel imaging light funnel. Its structure and operation principle are introduced, and its ray path is analyzed by computational simulation. The relationship between the light concentrating of the light funnel and the incident angle is investigated The results show that the changes of focal spot size, shape, energy distribution, and center of focal spot are affected by incident angle. In addition to theoretical analysis, several imaging light funnels are constructed, and experiments for single funnel and multiple funnels with series heating system are carried out. Two experiments results and heat collection efficiency of system are obtained Experiment results show that the heating temperature of this system can reach 335 degrees C and the heat collection efficiency could reach 40%. When the multiple funnels with series heat the water, the temperature can reach 150 degrees C.
