A door mirror comprising a mirror portion and a side blinker which is one example of lamp bodies allows easily performed maintenance for the side blinker. A second opening is formed on the back side of a mirror housing with fixing pieces formed on the second opening. A lamp unit integrates a lens portion with the back face of a base body having an inner base and an outer base which covers the front face of the inner base. The lamp unit is inserted into the second opening through the back face side of the mirror housing, and fixing pieces of the lamp unit and the mirror housing-fixing pieces are tightened by screws.