| 摘要 |
PURPOSE: A device for condensing sunlight is provided to improve energy efficiency by reducing a sunlight loss and condensing direct sunlight. CONSTITUTION: A device for condensing sunlight comprises a light condensing lens(10), a light condensing unit(20), and a support unit(30). The light condensing lens is formed in a doughnut-shape in order to disperse air resistance. The light condensing unit condenses incident light. The support unit is fixed to the ground and controls the light condensing lens and the light condensing unit to control a focus distance.
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