In recent years, green energy has been the subject of many studies and has attracted great attention throughout the world. Many studies have focused on illumination with sunlight as a means of saving energy and creating healthy lighting. In this research, we present a novel circle-focus Fresnel type concentrator. Each part of the reflector corresponds to different angles of incident rays, the purpose being to increase the tolerance of the concentrator. This strategy is different from the conventional approach but is easy to implement.
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