| 摘要 |
A reflector 3 having a bottom section 4 and a slope section 13 surrounding the periphery of the bottom section 4 is provided, and an LED 5 is mounted on the center of the bottom section 4 . A holder section 9 of a light control means 7 is detachably mounted to cover a lens 6 of the LED 5 , while a circular plate section 18 of the light control means 7 is provided with a main reflecting section 11 and a reflecting transmission section 12 . The main reflecting section 11 is designed to reduce the transmission amount from the LED 5 , thereby causing most of the light to reflect on the reflector 3 side. On the other hand, the reflecting transmission section 12 permits a larger amount of transmission than in the main reflecting section 11 . In this manner, it is possible to realize substantially uniform brightness in the entire upper section of the reflector 3 by the light transmitted through the main reflecting section 11 and the reflecting transmission section 12 and the light diffusely reflected from the reflector 3.
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