Various Types of Lighthouse Lenses 

1． Single Flashing Light Lens 
    Used in large lighthouses with flashing lights． 
    A mercury bath type rotating apparatus is used for rotation． 
   The light bulb is always lighted． 

2． Many Sided Single Flashing Light Lens 
    It is used in the same Way as the above lens． 

3． Single Flashing Lens 
    It is similar to the above two types of lenses， 
　　but the mercury bath is not used，and the lens is directly rotated by a motor． 

4． Fixed Lens 
    It is used in smaller lighthouses for fixed lights，occulting lights and flashing  lights． 
    The lens is not rotated, and the light bulb is turned on and off in accordance with the characteristics of the light. 
　　The inner diameter of the left lens is 300mm and the right lens is of a 200mm inner diameter． 
 
 

  Lighthouses with Vrious Records 
＊First Western style Lighthouse　　Kannonzaki Lighthouse 
　　（KanagaWa Prefecture）　　　Lighted in 1869 
＊Oldest Stone Lighthouse　　　　　Kashinozaki Lighthpuse 
　　（Wakayama Prefgcture）　　　　Lighted in 1870 
＊Oldest Brick Lighthouse　　　　　Sugashima Liehthouse 
　　（Mie Prefecture）　　　　　　　Lighted in 1873 
＊Oldest Concrete Lighthouse　　　Kurasaki Lighthouse 
　　　(Miyazaki Prefecture）　　　　　Lighted in 1884 
＊Oldest Steel Lighthouse　　　　　Himesaki Lighthouse 
　　（Niigata Prefecture）　　　　　　Lighted in 1895 
＊Lighthouse with a High Tower    lzumoHinomisaki Lighthouse 
　（Shimane Prefecture）　　　　43.65meters from the ground 
＊Lighthouse Highest from the Sea Level 
　　　　　　　　　　　　　　　　　　　　Amarubezaki Lighthouse 
　　（Hyogo Prefecture） 
　　　The  light is 284.1meters above the mean sea level. 
＊Lighthouse With the Longest Visual Range 
　　　　　　　　　　　　　　　　　　　　　Murotosaki Lighthouse 
　　　Visual Range 26miles（approximately 49kilometers） 
＊Lighthouses with Strong Luminous lntensity 
　　
　　　Murotosaki Lighthouses 
　　　Luminous intensity 1,600,000Candela 
　　
＊Northermost Lighthouse　　　　　Soya−Misaki Lighthouse 
　　（Hokkaido） 
　　　north latitude 45°31′17″　　east longitude 141°56′11″ 
＊Easternmost Lighthouse　　　　　Nosappu−Misaki Lighthouse 
　　（Hokkaido） 
　　　north latitude 43°23′07″　east longitude 145°49′01″ 
＊Southernmost Lighthouse　　　　Hateruma−Shima Lighthouse 
　　　（Okinawa） 
　　　north latitude 24°03′27″　　east longitude 123°47′08″ 
＊Westernmont Lighthouse　　　　lrisaki Lighthouse 
　　（Okinawa） 
　　　north latitude 24°27′05″　　east longitude 122°56′11″