技術論文
大口径フレネルレンズとプラスチック光ファイバを用いた太陽光採光装置の実験的評価
2018 年 44 巻 3 号 p. 87-90
詳細
2018 年 44 巻 3 号 p. 87-90
An optical fiber lighting system using a Fresnel lens and plastic optical fiber was investigated for sunlight condensation. The coupling efficiency of the Fresnel lens to the optical fiber was evaluated in experiments and calculations. As a result, it has been found that the chromatic aberration of the lens does not cause a significant reduction in the efficiency and the unique groove structure of the Fresnel lens requires though evaluation in the selection process.A coupling efficiency of about 50% was obtained by using a large diameter Fresnel lens of φ 300 mm.
