Lighting devices with removable light engine components, lighting device elements and methods

1. A lighting device, comprising:

a lighting device element, the lighting device element having at least a first electrical contact region and a first mechanical engagement region, the first mechanical engagement region different from the first electrical contact region; and

at least a first light engine component, the first light engine component comprising a light engine module comprising at least a first solid state light emitter support member and at least a first solid state light emitter, the first solid state light emitter support member having at least a second electrical contact region and at least a second mechanical engagement region, the second mechanical engagement region different from the second electrical contact region,

the first light engine component removably supported by the lighting device element,

the first electrical contact region in electrical contact with the second electrical contact region.

2. A lighting device as recited in claim 1 , wherein the first light engine component is a solid state light emitter.

3. A lighting device as recited in claim 1 , wherein the solid state light emitter is a chip.

4. A lighting device as recited in claim 1 , wherein the first light engine component further comprises an encapsulant.

5. A lighting device as recited in claim 1 , wherein the first solid state light emitter is mounted on the first solid state light emitter support member.

6. A lighting device as recited in claim 1 , wherein the lighting device element comprises at least a first housing member.

7. A lighting device as recited in claim 6 , wherein:

the first mechanical engagement region is on a surface of the first housing member,

the first mechanical engagement region is substantially tapered, and

the second mechanical engagement region is substantially tapered.

8. A lighting device as recited in claim 7 , wherein:

the first mechanical engagement region is substantially frustoconical, and

the second mechanical engagement region is substantially frustoconical.

9. A lighting device as recited in claim 1 , wherein the lighting device element comprises at least a first housing member that comprises at least a first heat dissipation structure.

10. A lighting device as recited in claim 9 , wherein the first heat dissipation structure comprises at least one pin or fin.

11. A lighting device as recited in claim 1 , wherein the lighting device element comprises at least a first housing member and at least one element selected from among an electrical connector, a lens and a reflective element.

12. A lighting device as recited in claim 1 , wherein:

the lighting device element comprises at least a first housing member, and

the first housing member has at least a first cavity in which at least a portion of the first light engine component is located.

13. A lighting device as recited in claim 1 , wherein:

the lighting device element further comprises at least a first locking member that has at least a first unlocked position and at least a first locked position,

the first locking member holds the first light engine component in place relative to the lighting device element if the first locking member is in the first locked position, and

the first locking member does not hold the first light engine component in place relative to the lighting device element if the first locking member is in the first unlocked position.

14. A lighting device as recited in claim 1 , wherein:

the lighting device element comprises at least a first substantially transparent element, and

if the first solid state light emitter is illuminated, at least some of the light emitted by the first solid state light emitter would pass through at least a portion of the first substantially transparent element.

15. A lighting device as recited in claim 14 , wherein the first substantially transparent element defines at least a first hollow region.

16. A lighting device as recited in claim 1 , wherein the lighting device element comprises at least a first retaining structure which removably holds the first light engine component in place relative to the lighting device element.

17. A lighting device as recited in claim 1 , wherein the lighting device element comprises at least one notch in which at least a portion of the first light engine component is positioned.

18. A lighting device as recited in claim 1 , wherein the first solid state light emitter support member comprises at least one element selected from among circuit boards, circuitry components, electrical contacts and electrical traces.

19. A lighting device as recited in claim 1 , wherein the lighting device further comprises at least one additional light source.

20. A lighting device element, comprising:

at least a first electrical contact region, and

at least a first mechanical engagement region, the first mechanical engagement region different from the first electrical contact region,

the lighting device element configured to removably support at least one light engine component with a second electrical contact region of the light engine component in electrical contact with the first electrical contact region and a second mechanical engagement region of the light engine component in mechanical support engagement with the first mechanical engagement region.

21. A lighting device element as recited in claim 20 , wherein:

the lighting device element further comprises a first surface,

the first electrical contact region is on the first surface, and

the first mechanical engagement is on the first surface.

22. A lighting device as recited in claim 1 , wherein the first mechanical engagement region is in contact with the second mechanical engagement region.