| 摘要 |
There is provided a bicycle head lamp employing an LED having high energy efficiency to be capable of provide sufficiently increased illuminance at a center position a predetermined distance ahead and also satisfying a predetermined distribution of light. A head lamp (10) attached to a bicycle includes a casing (31), a plurality of adjacently arranged LEDs (1-5), and a lens (11-15) arranged closer to an opening for each LED. <IMAGE>
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