| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED lamp which can become lightweight while improving a heat radiation property.SOLUTION: An LED lamp 171 comprises plural LEDs 7, a mount board 173 comprising the plural LEDs 7 on the surface, a glass tube 3 housing the mount board 173 inside, and an adhesive 175 bonding the mount board 173 and the glass tube 3. Between the back side of the mount board 173 and the inner face of the glass tube 3, the adhesive 175 is provided in plural points putting gaps to the longer direction of the glass tube 3, and the adhesive 175 exists in each position corresponding to the backside of the mounting area of the plural LEDs on the mount board 173. |
