近年來太陽能產業的快速發展，在太陽能電池及光電測試方面的研究也日漸升溫，但是太陽光模擬器在市場的價格、配件成本高昂，導致價格一直居高不下，進口太陽光模擬器要上百萬，昂貴的價格使得一般研究所實驗室無法負擔，本系統可以避免昂貴設備成本與高製造技術等問題。
國際組織IEC(International Electro Technical Commission)根據三項特性對不同的太陽光模擬器之等級劃分，此內容包括太陽光模擬器所需符合的太陽光光譜分佈、均勻度與穩定性等三項特性。
本系統設計目標將會依照太陽光模擬器的國際標準規範之性能指標，設計一套可以產生均勻準直光的光學系統，以應用於太陽光模擬器。該系統規格為：出射光束發散角小於2°以內(即：準直度小於2°)、輻照不均勻度小於5%以內、輻照不穩定度小於2%以內以及出光面須為40mm×40mm之方形光源。

Whether solar cell research and development, production, or validation phase, all needs to have a light source equivalent to sunlight, inspect the component property of solar cell, the solar simulator is small, The test process is not affected by time, season, weather and other factors, so that the test repeatable experimental data, if use the outdoor sunlight to experiment, various environmental factors will affect the result. With the solar energy industry development, the solar simulator is more important. The usual high standard solar simulator, the price is expensive, generally laboratory is difficult to purchase, and in this study we propose a low cost design to achieve the high specification of the solar simulator international standard, the main objective to provide a controllable indoor test facility under laboratory conditions, used for testing and developing of solar cells.
The system will be designed in accordance with international standards of performance solar simulator design can produce a uniform collimated beam optical system to be applied to a solar simulator. The system will be in accordance with the performance solar simulator with international standards, the design of an optical system to be applied to solar simulator, the system consists of a quartz tungsten halogen lamp, ellipsoidal reflector, condenser lens, optical integrator and collimating lenses. The system specifications are: the beam collimating angle is less than 2 °, irradiation non-uniformity is less than 5%, temporal instability is less than 2%

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