| 摘要 |
Provided is a concentration ratio controlling apparatus for concentration type solar cells that may adjust an opened area by mounting, to a lower portion of a solar simulator, a concentration ratio controlling apparatus combined with an adjustment unit capable of controlling the opened area and thereby adjusting the adjustment unit, and as a result, may adjust the quantity of light, that is, a concentration ratio, that is irradiated toward the surface of a solar cell disposed below a condenser by varying the quantity of light incident through a Fresnel lens disposed in a lower portion of the condenser.
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