| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting fixture capable of sufficiently securing a light output while reducing costs necessary for mounting and maintenance management. <P>SOLUTION: The lighting fixture has a body 2 which is an approximate box-shape with an opening and stores four lamps 10 in the inside, an airtight fixture body 1 having a light-transmitting window material 5 for blocking the opening of the body 2, and a heat-radiating member 20 formed by a highly thermally-conductive metal and thermally combining the body 2 and lamp 10. The heat-radiating member 20 has a pedestal section 21 mounted on the body 2, and a contact section 22 brought into contact with a glass tube wall of the lamp 10. A packing 25 is fixed on a semicircular recessed section 24 arranged in front of the contact section 22, generated heat of the lamp 10 is transmitted to the body 2 via the heat-radiating member 20 by making the contact section 22 bring into contact with the glass tube wall of the lamp 10 via the packing 25, and the heat is radiated from the body 2 to the outside. <P>COPYRIGHT: (C)2009,JPO&INPIT |
