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  • Received: Oct. 9, 2020

    Accepted: Nov. 17, 2020

    Posted: Dec. 1, 2020

    Published Online: Dec. 3, 2020

    The Author Email: Wang Guangcai (

    DOI: 10.3788/AOS202040.2436001

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    Guangcai Wang, Xing Lin, Chen Gu, Jing Wang, Lin Ou. New Type of Uniform Light Device for Solar Simulator[J]. Acta Optica Sinica, 2020, 40(24): 2436001

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Acta Optica Sinica, Vol. 40, Issue 24, 2436001 (2020)

New Type of Uniform Light Device for Solar Simulator

Wang Guangcai*, Lin Xing, Gu Chen, Wang Jing, and Ou Lin

Author Affiliations

  • Institute of Photo-Electronics Thin Film Devices and Technique, Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Engineering Research Center of Thin Film Optoelectronics Technology, Ministry of Education, Sino-Euro Joint Research Center for Photovoltaic Power Generation of Tianjin, Nankai University, Tianjin 300350, China


The uniformity of irradiance intensity is an important parameter of a solar simulator. There are some problems, such as designing complexity and high cost, in the process of using an optical integrator to obtain uniformity light. The microsphere surface reflective lens is pressed by the ultra-efficient mirror with the moulds prepared by three-dimensional printing technology. A new type of uniform light device is composed of two microsphere surface reflective lenses and a cylindrical light pipes. The non-uniformity of irradiance intensity of a light spot with a 150 mm diameter is 1.12% obtained by the principle of diffuse reflection of light. The result reaches the A level of IEC 60904-9. The new type of uniform light device has some characters such as simple structure, high utilization rate of light source, and low cost.


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