| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent, even when light distribution of a plurality of LEDs is controlled, lowering of use efficiency of the LEDs while keeping light condensing performance. <P>SOLUTION: A beam lamp optical component 46 is provided to an LED lamp 1 including a plurality of LEDs 15 as a light source and condenses and distributes light from the light source to a given range. The LEDs 15 each include condensation and distribution optical elements 47 integrally including condenser lenses 49 for collecting light incident from incident surfaces 49A and outputting the light from emission surfaces 49B and reflection surfaces 50 for reflecting the light deflected from the incident surfaces 49A to the emission surfaces 49B sides. Adjacent reflection surfaces 50 of the condensation and distribution optical elements 47 are overlapped with one another. <P>COPYRIGHT: (C)2013,JPO&INPIT |
