| 摘要 |
PROBLEM TO BE SOLVED: To provide a submarine lamp for use in cuttlefish-hook utilizing LED as a light source, which lamp has a simple structure and thus is inexpensive in cost. SOLUTION: LED as a light source is mounted in a spindle-shaped or cylindrical transparent case in such a manner that an axis direction of the case becomes a light projecting direction. This structure provides a simple electrical connection between a cell included in the case and LED. Within the case or on the inner wall surface of the case, there is formed a reflective or refractive surface serving to radially diffuse an axially projected light. Thus, a beam-shaped light from LED is widely diffused and projected. |
