| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain efficient heat radiation and excellent light distribution in a constitution in which an LED light source body is sealed in a globe. <P>SOLUTION: A stem member 3 with an LED light source body 4 mounted on an outer circumferential surface of an LED mounting part 22 is attached and detached to/from a light source body mounting part 14 of a holder member 2 with a large number of heat radiation fins 13 provided at its upper outer circumferential part, and the stem member 3 is sealed by a globe 8 mounted to a globe mounting part 11 of the holder member 2 by locating a fore end of the LED mounting part 22 slightly above the center of a space 33. The heat generated from an LED element 5 of the LED light source body 4 is transferred from a heat radiation space 24 of the stem member 3 to a passing and a heat-conductive space 12 of the holder member 2, and radiated from the heat radiation fins 13. <P>COPYRIGHT: (C)2011,JPO&INPIT |
