| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED lamp capable of reducing the weight while improving heat radiation characteristic.SOLUTION: An LED lamp 1 includes: a long glass tube 3; a mounting substrate 5 including an SMD type LED 7 comprising by sealing an LED element in a sealing body mounted on the element mounting substrate on the surface, and arranged in the glass tube 3 in a state where it cross-links separated two points on an inner surface of the glass tube 3; and an adhesive 9 for joining the mounting substrate 5 and the glass tube 3. An end edge of the mounting substrate 5 extending in the longitudinal direction comes into contact with the inner surface of the glass tube 3, and the adhesive 9 is filled between a rear surface of the mounting substrate 5 and the inner surface of the glass tube 3. |
