Design Of The Conical Optical Fiber Solar Concentrator

Fiber optic lighting system of solar energy is adapt to modern social development of low-carbon life and green lighting concept of new type of lighting. Due to the sunlight directly converge, light through the optical fiber will be introduced to the indoor light, which can separate the ultraviolet and infrared ray intercept significantly, thus provide the green, environmental protection, clean new healthy light source.In the solar lighting system, condensing efficiency are the direct factors determine transmission performance. Pass to optical fiber is introduced and focusing device on the basis of the research status of the tapered optical fiber transmission mode theory, put forward the research based on cone type condenser fiber beam combination, to increase the fiber condensing surface, enhance the capacity of the condenser of the fiberFirstly, this paper designs the structure of the optical concentrator, and introduces the selection of the structure of the general parameters. Using Light tools software simulation analysis the influence of the tapered fiber condenser’s length, the connecting length of the fiber and the Angle of incident Light on the optimal parameters condenser efficiency. The designing of the transmission efficiency of tapered condenser structure is more than 65%.Secondly, the paper puts forward the fiber bundle aggregator cascade structure, which can be more condenser of output energy converged into a single fiber, and increase lens focusing area and reduce the number of transmission fiber. The research results show that the condenser system composed of 7 level of condenser is more than 4 times of the primary structureFinally, using the plastic optical fiber experiment to study the laser beam combination condenser performance and effect. According to the differences of the theoretical simulation and experimental research of performance, this paper analyzes the reasons of difference, and obtains the requirement of incident light Angle.