LAMP AND METHOD FOR SUPPORTING A LIGHT SOURCE

• US 20090091938A1
• Filed: 10/03/2008
• Published: 04/09/2009
• Est. Priority Date: 10/03/2007
• Status: Active Grant

• Current Assignee: Sunnex, Inc.
• Original Assignee: Sunnex, Inc.
• Inventors: Jacobson, A. Brian, Pangrekar, B. Mayur
• Granted Patent: US 8,192,052 B2
• Time in Patent Office: Days
• US Class Current: 362/362
• CPC Class Codes: F21V 17/164 the parts being subjected to bending, e.g. snap joints
• CPC Class Codes: F21V 19/0005 of sources having contact pins, wires or blades, e.g. pinch sealed lamp F21V19/001 takes precedence
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A lamp is provided. Generally, the lamp comprises light source means for providing illumination in a frontward direction, retainer means for applying a frontward-directed load to the light source, and housing means for mechanically supporting the light source means and the retainer means.

Claims

1. A lamp comprising:

a bulb capable of providing illumination in a frontward direction and having a rear surface;

a retainer capable of applying a frontward-directed load to the rear surface of the bulb; and

a housing capable of mechanically supporting the bulb and the retainer;

wherein the retainer is pivotably mounted to the housing.

2. A lamp comprising:

a bulb capable of providing illumination in a frontward direction and having a rear surface;

a retainer capable of applying a frontward-directed load to the rear surface of the bulb; and

a housing capable of mechanically supporting the bulb and the retainer;

wherein the rear surface of the bulb has a convex profile, and the retainer has a concave side, the frontward-directed load being applied as a result of contact between the concave side of the retainer and the convex profile of the bulb rear surface.

3. A lamp assembly comprising:

a housing having a pivot support, a free end, a stop end, and a channel formed between the free end and the stop end; and

a retainer having a pivot end;

wherein the pivot end of the retainer is pivotably supported by the pivot support of the housing so that the retainer can assume an open and a closed configuration.

4. A lamp assembly according to claim 3 wherein the retainer further has a latch end, the housing further has a latch holder, and the latch end of the retainer engages with the latch holder of the housing when the retainer is moved from its open to its closed configuration.

5. A lamp assembly according to claim 4 wherein the retainer swings out of the way of the channel of the housing when the retainer is moved from its closed to its open configuration.

6. A lamp assembly according to claim 4 wherein the latch end is a tab, and the latch holder is a slot.

7. A lamp assembly according to claim 4 wherein the retainer further has a bridge region between the pivot end and the latch end, the bridge region being curved such that a concave side thereof leads as the retainer is moved from its open to its closed configuration.

8. A lamp assembly according to claim 7 wherein the retainer further has a shoulder region between the bridge region and the latch end, finger pressure on the shoulder region causing the retainer to flex so as to permit the latch end of the retainer to engage with the latch holder of the housing when the retainer is moved from its open to its closed configuration, and so as to permit the latch end of the retainer to disengage from the latch holder of the housing when the retainer is moved from its closed to its open configuration.

9. A lamp assembly according to claim 8 further comprising a bulb having a convex rear surface;

wherein the concave side of the bridge region of the retainer contacts the convex rear surface of the bulb at the pivot end side of the bridge region, but does not contact the convex rear surface of the bulb at the latch end side of the bridge region, when the retainer is in its closed configuration.

10. A lamp assembly according to claim 9 wherein clearance between the retainer and the bulb rear surface at the latch end side of the bridge region when the retainer is in its closed configuration is sufficient to prevent the latch end side of the bridge region from hitting the bulb rear surface during disengagement of the latch end of the retainer from the latch holder of the housing when the retainer is being moved from its closed to its open configuration.

11. A lamp assembly according to claim 3 wherein the retainer has a concave side that is directed toward the stop end of the housing when the retainer is in its closed configuration.

12. A lamp assembly according to claim 11 wherein the channel of the housing is cylindrical.

13. A lamp assembly according to claim 12 wherein an axis of symmetry of the concave side of the retainer is substantially parallel to an axis of the channel when the retainer is in its closed configuration.

14. A lamp assembly according to claim 3 further comprising a bulb;

wherein the bulb can be removed from the housing when the retainer is in its open configuration; and

the retainer applies a load to the bulb when the retainer is in its closed configuration.

15. A lamp assembly according to claim 4 further comprising a bulb having a convex rear surface;

wherein the retainer further has a curved bridge region between the pivot end and the latch end, the curved bridge region of the retainer having a concave side, the concave side of the bridge region of the retainer contacting the convex rear surface of the bulb when the retainer is in its closed configuration.

16. A lamp assembly according to claim 4 further comprising a bulb having a convex rear surface;

wherein the retainer further has a curved bridge region between the pivot end and the latch end, the curved bridge region of the retainer having a concave side, a load applied from the retainer to the bulb rear surface when the retainer is in its closed configuration being more or less uniformly distributed along the concave side of the curved bridge region.

17. A lamp assembly comprising:

a housing having a free end, a stop end, and a channel formed between the free end and the stop end; and

a retainer openably installed on the housing so as to be capable of assuming an open configuration and a closed configuration;

wherein the retainer at least partially spans a width direction of the channel when the retainer is in its closed configuration, and the retainer has a concave side that is directed toward the stop end of the housing when the retainer is in its closed configuration.

18. A lamp assembly according to claim 17 wherein an axis of symmetry of the concave side of the retainer is substantially parallel to an axis of the channel when the retainer is in its closed configuration.

19. A lamp assembly according to claim 18 wherein the channel of the housing is cylindrical.

20. A lamp assembly according to claim 17 wherein the retainer has a pivot end, the housing has a pivot support, and the pivot end of the retainer is pivotably supported by the pivot support of the housing.

21. A lamp assembly according to claim 20 wherein the retainer further has a latch end, the housing further has a latch holder, and the latch end of the retainer engages with the latch holder of the housing when the retainer is moved from its open to its closed configuration.

22. A lamp assembly according to claim 20 wherein the retainer swings out of the way of the channel of the housing when the retainer is moved from its closed to its open configuration.

23. A lamp assembly according to claim 21 wherein the latch end is a tab, and the latch holder is a slot.

24. A lamp assembly according to claim 21 wherein the retainer further has a bridge region between the pivot end and the latch end, the bridge region being curved such that a concave side thereof leads as the retainer is moved from its open to its closed configuration.

25. A lamp assembly according to claim 24 wherein the retainer further has a shoulder region between the bridge region and the latch end, finger pressure on the shoulder region causing the retainer to flex so as to permit the latch end of the retainer to engage with the latch holder of the housing when the retainer is moved from its open to its closed configuration, and so as to permit the latch end of the retainer to disengage from the latch holder of the housing when the retainer is moved from its closed to its open configuration.

26. A lamp assembly according to claim 25 further comprising a bulb;

wherein the bulb can be removed from the housing when the retainer is in its open configuration; and

the retainer applies a load to the bulb when the retainer is in its closed configuration.

27. A lamp assembly according to claim 26 wherein the bulb has a convex rear surface and wherein the retainer further has a curved bridge region between the pivot end and the latch end, the curved bridge region of the retainer having a concave side, the concave side of the bridge region of the retainer contacting the convex rear surface of the bulb at the pivot end side of the bridge region but not contacting the convex rear surface of the bulb at the latch end side of the bridge region when the retainer is in its closed configuration.

28. A lamp assembly according to claim 27 wherein clearance between the retainer and the bulb rear surface at the latch end side of the bridge region when the retainer is in its closed configuration is sufficient to prevent the latch end side of the bridge region from hitting the bulb rear surface during disengagement of the latch end of the retainer from the latch holder of the housing when the retainer is being moved from its closed to its open configuration.

29. A lamp assembly according to claim 21 further comprising a bulb having a convex rear surface;

wherein the retainer further has a curved bridge region between the pivot end and the latch end, the curved bridge region of the retainer having a concave side, the concave side of the bridge region of the retainer contacting the convex rear surface of the bulb when the retainer is in its closed configuration.

30. A lamp assembly according to claim 21 further comprising a bulb having a convex rear surface;

wherein the retainer further has a curved bridge region between the pivot end and the latch end, the curved bridge region of the retainer having a concave side, a load applied from the retainer to the bulb rear surface when the retainer is in its closed configuration being more or less uniformly distributed along the concave side of the curved bridge region.

31. A lamp comprising:

light source means for providing illumination in a frontward direction;

retainer means for applying a frontward-directed load to the light source; and

housing means for mechanically supporting the light source means and the retainer means;

wherein the retainer means is openably installed on the housing means.

32. A method for supporting a light source capable of providing illumination in a frontward direction and having a rear surface, the method comprising:

guiding the light source in a channel having a free end and a stop end such that the front of the light source abuts the stop end of the channel, and such that the rear surface of the light source faces the free end of the channel; and

using a pivotable retainer to apply a frontward-directed load to the rear surface of the light source.

33. A method for supporting a light source capable of providing illumination in a frontward direction and having a convex rear surface, the method comprising:

guiding the light source in a channel having a free end and a stop end such that the front of the light source abuts the stop end of the channel, and such that the rear surface of the light source faces the free end of the channel; and

causing a concave side of a curved retainer to contact the convex rear surface of the light source so as to apply a frontward-directed load to the light source.