| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology of a multiple focal lens flashlight for sufficiently utilizing performance possessed by a high brightness LED flashlight. <P>SOLUTION: This is the flashlight 3 in which a lens having the plurality of foci distributed between from about 50 cm distance which is most suitable for a human to look at an object to about 2 m ahead from the foot ground to which view direction is directed when walking in front of an LED 2 of a light source. This generates an effect like feeling that a part becomes bright where searchlight illuminating the night sky is intersected with each other three-dimensionally, and of course, while convergence of light can not be recognized with the light intensity of the flashlight level unless there is an object to reflect the light. <P>COPYRIGHT: (C)2008,JPO&INPIT |
