| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lamp house capable of generating the power with power generating means when a light source is turned on, and even when the light source is not turned on, the power generating means can efficiently generate the power by allowing external light to enter into a housing. <P>SOLUTION: The lamp house comprises a light source LS and power generating means in a housing 21A having a window W. The window is provided with a condenser lens CL for condensing light emitted from the light source to output the light out of the housing. A functional surface of the power generating means such as a light receiving plane 22a of a solar cell 22 is oriented to the condenser lens, and the power generating means is disposed on an optical axis OA21 of the condenser lens and positioned at the rear side of the light source as viewed from the condenser lens toward the inside of the housing along the optical axis OA21 of the condenser lens. <P>COPYRIGHT: (C)2012,JPO&INPIT |
