PURPOSE: An outside lamp is provided to reduce the manufacturing cost of the lamp by reinforcing the thicknesses of the bordering portion of a reflector portion and a lens portion. CONSTITUTION: A base member is integrally formed with a stem tube having a filament at the upper portion thereof, and includes an engaging terminal portion on the outer surface. A reflector section is extended from the base member. A lens portion is provided in front of the reflector portion. The reflector portion(20) is integrally formed with the lens portion(30). An aluminum coating layer(22) is evaporated on the inner surface thereof. A thickness reinforcing boss(40) is formed at the outer periphery of the lens portion(30).
