| In Japan, this type of lens is adopted only by the Inubozaki lighthouse (Chiba Prefecture), Izumohinomisaki lighthouse (Shimane Prefecture), Tsunoshima lighthouse (Yamaguchi Prefecture), Muroto-misaki Cape (Kochi Prefecture), and Oki-no-shima Island (Fukuoka Prefecture) other than the Kyoga-misaki lighthouse. |
これは日本国内では他に犬吠埼燈台（千葉県）、出雲日御碕燈台（島根県）、角島角島燈台（山口県）、室戸岬（高知県）、沖ノ島（福岡県）の各灯台でしか用いられていない。 |