| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting fixture capable of brightly illuminating a work range at its lower part in a simple structure and having an attractive appearance. <P>SOLUTION: The lighting fixture includes LED elements 3, and prisms 4 arranged in an irradiating direction of the LED elements 3. Light control surfaces 4a which are of a round shape centering an optical axis L1 of light emitted from each LED element 3 and have unevennesses are formed at a side of the prisms 4 facing the LED elements 3. Each light control surface 4a has condensing surfaces (a convex lens condensing surface 4b and a circular condensing surface 4c) for controlling the light emitted from the LED elements 3 in a direction approaching the optical axis L1, and divergent surfaces 4d for controlling the light emitted from the LED elements 3 so as to make the light emitted from the LED elements 3 reach further outside than an opposite surface to the light control surface 4a at an irradiating direction side of the prism 4. <P>COPYRIGHT: (C)2012,JPO&INPIT |
