| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve problems wherein it is technically difficult to accurately form a projecting structure for performing position control of a base where an LED is mounted on an inner wall of an elongated tubular member and it is more difficult to form the projecting structure if an inner diameter of a tube is small and the projecting structure is small and further, it is more difficult to form a convex structure on an inner wall surface of the tube if a glass material and a ceramic material are used on an outer enclosure member. <P>SOLUTION: Hollows facing each other are arranged on an inner periphery of the tube wall cross section made by cutting the tubular member in a vertical direction against a central axis direction of the tubular member. Each hollow is continuously and linearly formed from one end of the tubular member to the other end, and the base can be controlled by being sandwiched with the hollows. <P>COPYRIGHT: (C)2012,JPO&INPIT |
