Integrated cardan mechanism for adjustable luminaires

1. An integrated ring assembly for an adjustable luminaire comprising:

a ring component comprising:

a generally circular ring;

a first inward connector of the generally circular ring having a through hole and extending inwardly a predetermined distance from the ring component along a first axis;

a second inward connector of the generally circular ring having a through hole and extending inwardly a predetermined distance from the circular ring component along the first axis opposite the first inward connector;

a first outward connector of the generally circular ring comprising a through hole and a first tab and extending outwardly a predetermined distance from the ring component along a second axis; and

a second outward connector of the generally circular ring comprising a second through hole and a second tab and extending outwardly a predetermined distance from the circular ring component along the second axis opposite the first outward connector; and

a luminaire head comprising first and second holes positioned for accepting a first fastener inserted through the through hole of the first inward connecter and a second fastener inserted through the through hole of the second inward connector.

2. The integrated ring assembly of claim 1 , further comprising a first receptacle in the first outward connector configured for accommodating a fastener component.

3. The integrated ring assembly of claim 1 , further comprising a second receptacle in the second outward connector configured for accommodating a fastener component.

4. The integrated ring assembly of claim 1 , wherein the first axis is in a plane of and crosses a center point of the ring component.

5. The integrated ring assembly of claim 1 , wherein the second axis is in a plane of and crosses a center point of the ring component.

6. The integrated ring assembly of claim 1 , wherein the first axis and the second axis are in a plane of and cross a center point of the ring component.

7. The integrated ring assembly of claim 1 , wherein the first axis and the second axis are perpendicular to each other.

8. A rotatable luminaire comprising:

a luminaire housing;

a cardan mechanism rotatably connected to the luminaire housing; and

a light source housing rotatably connected to the cardan mechanism;

wherein the cardan mechanism comprises:

a generally circular ring having a first inward connector having a through hole and extending inwardly a predetermined distance from the generally circular ring along a first axis;

a second inward connector of the generally circular ring having a through hole and extending inwardly a predetermined distance from the generally circular ring along the first axis opposite the first inward connector;

a first outward connector of the generally circular ring comprising a through hole and a first tab and extending outwardly a predetermined distance from the generally circular ring along a second axis; and

a second outward connector of the generally circular ring comprising a second through hole and a tab and extending outwardly a predetermined distance from the generally circular ring along the second axis opposite the first outward connector; and

wherein the light source housing comprises:

first and second holes positioned for accepting a first fastener inserted through the through hole of the first inward connecter of the generally circular ring and a second fastener inserted through the through hole of the second inward connector of the generally circular ring.

9. The rotatable luminaire of claim 8 , wherein the first inward connector and the second inward connector are configured for holding the light source housing without any additional spacers inside of the generally circular ring such that a light source within the light source housing can be rotated about the first axis.

10. The rotatable luminaire of claim 8 , further comprising a first receptacle in the first outward connector configured for accommodating a first fastener component.

11. The rotatable luminaire of claim 10 , wherein the first fastener component is a locknut configured to snugly fit into the first receptacle.

12. The rotatable luminaire of claim 8 , further comprising a second receptacle in the second outward connector configured for accommodating a second fastener component.

13. The rotatable luminaire of claim 12 , wherein the second fastener component is a locknut configured to snugly fit into the second receptacle.

14. The rotatable luminaire of claim 8 , wherein the first axis is in a plane of and crosses a center point of the ring component.

15. The rotatable luminaire of claim 8 , wherein the second axis is in a plane of and crosses a center point of the ring component.

16. The rotatable luminaire of claim 8 , wherein the first axis and the second axis are in a plane of and cross a center point of the ring component.

17. The rotatable luminaire of claim 8 , wherein the first axis and the second axis are perpendicular to each other.

18. The rotatable luminaire of claim 8 , wherein the first tab and the second tab are configured for movement within openings having predefined dimensions in walls of the luminaire housing, such that the predefined dimensions of the openings define the rotation range of the light source housing when rotated about the second axis.

19. The rotatable luminaire of claim 8 , wherein the first and second fasteners comprise screws.

20. The rotatable luminaire of claim 8 , wherein the first and second fasteners have end portions that are smooth round surfaces.