Lamp unit

1. A lamp unit comprising:

a first semiconductor light-emitting element that serves as a light source;

a second semiconductor light-emitting element that serves as a light source;

a support member that supports the first semiconductor light-emitting element and the second semiconductor light-emitting element;

a first reflector provided above the first semiconductor light-emitting element, which reflects light radiated from the first semiconductor light-emitting element forward;

a shade that blocks a portion of reflected light from the first reflector;

a projection lens provided in front of the first reflector with the shade disposed therebetween, which forms a light distribution pattern with a cut-off line from light reflected by the first reflector;

a positioning portion that positions the projection lens; and

a second reflector provided below the second semiconductor light-emitting element, which reflects light radiated from the second semiconductor light-emitting element forward,

wherein the shade, the positioning portion, and the second reflector are integrally molded as a composite part.

2. The lamp unit according to claim 1 ,

wherein the shade has a reflective surface that further reflects a portion of light reflected by the first reflector toward the projection lens.

3. The lamp unit according to claim 1 ,

wherein the composite part is formed with an insertion portion into which the second semiconductor light-emitting element is inserted so as to face a reflective surface of the second reflector.

4. The lamp unit according to claim 1 ,

wherein at least a portion of the support member mounted with the first semiconductor light-emitting element and the second semiconductor light-emitting element is formed from a metal material.

5. The lamp unit according to claim 2 ,

wherein the composite part is formed with an insertion portion into which the second semiconductor light-emitting element is inserted so as to face a reflective surface of the second reflector.

6. The lamp unit according to claim 2 ,

wherein at least a portion of the support member mounted with the first semiconductor light-emitting element and the second semiconductor light-emitting element is formed from a metal material.

7. The lamp unit according to claim 3 ,

wherein at least a portion of the support member mounted with the first semiconductor light-emitting element and the second semiconductor light-emitting element is formed from a metal material.

8. The lamp unit according to claim 5 ,

wherein at least a portion of the support member mounted with the first semiconductor light-emitting element and the second semiconductor light-emitting element is formed from a metal material.

9. The lamp unit according to claim 1 , further comprising a heat radiation fin thermally connected to the support member.

10. A method of manufacturing a lamp unit comprising:

providing a first semiconductor light-emitting element that serves as a light source;

providing a second semiconductor light-emitting element that serves as a light source;

providing a support member that supports the first semiconductor light-emitting element and the second semiconductor light-emitting element;

providing a first reflector above the first semiconductor light-emitting element, which reflects light radiated from the first semiconductor light-emitting element forward;

providing a shade that blocks a portion of reflected light from the first reflector;

providing a projection lens in front of the first reflector with the shade disposed therebetween, which forms a light distribution pattern with a cut-off line from light reflected by the first reflector;

providing a positioning portion that positions the projection lens; and

providing a second reflector below the second semiconductor light-emitting element, which reflects light radiated from the second semiconductor light-emitting element forward,

wherein the shade, the positioning portion, and the second reflector are integrally molded as a composite part.

11. The method according to claim 10 ,

wherein the shade has a reflective surface that further reflects a portion of light reflected by the first reflector toward the projection lens.

12. The method according to claim 10 , further comprising:

forming the composite part with an insertion portion into which the second semiconductor light-emitting element is inserted so as to face a reflective surface of the second reflector.

13. The method according to claim 10 , further comprising:

forming at least a portion of the support member mounted with the first semiconductor light-emitting element and the second semiconductor light-emitting element from a metal material.

14. The method according to claim 11 , further comprising:

forming the composite part with an insertion portion into which the second semiconductor light-emitting element is inserted so as to face a reflective surface of the second reflector.

15. The method according to claim 11 , further comprising:

forming at least a portion of the support member mounted with the first semiconductor light-emitting element and the second semiconductor light-emitting element from a metal material.

16. The method according to claim 12 , further comprising:

forming at least a portion of the support member mounted with the first semiconductor light-emitting element and the second semiconductor light-emitting element from a metal material.

17. The method according to claim 14 , further comprising:

forming at least a portion of the support member mounted with the first semiconductor light-emitting element and the second semiconductor light-emitting element from a metal material.

18. The method according to claim 10 , further comprising thermally connecting a heat radiation fin to the support member.