Lamp with a reflector

Patent metadata

Field	Value
Publication number	US-9568160-B2
Application number	US-201313891479-A
Country	US
Kind code	B2
Filing date	May 10, 2013
Priority date	May 10, 2013
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A lamp is disclosed. The lamp has a housing, at least one light source in the housing, and a reflector. The reflector has a light reflective surface facing said light source. The reflector and its light reflective surface is movable with respect to said light source along a path-of-movement to reflect at least a portion of light from the source to provide an adjustable, generally forwardly directed light beam.

First claim

The invention claimed is:

1. A lamp, comprising:
a housing defining at least one opening through a side of said housing;
at least one light source mounted outside said housing arranged and configured to project light into said housing through said at least one opening;
a reflector inside said housing comprising a light reflective surface facing said light source;
wherein said at least one opening is between said light source outside said housing and said reflector inside said housing;
wherein said reflector and its light reflective surface is movable with respect to said light source along a curved path-of-movement of said reflector to reflect at least a portion of light from said source to provide an adjustable, generally forwardly directed light beam; and,
wherein said reflector does not have a hinge-joint about which to pivot.

2. The lamp of claim 1 wherein said curved path-of-movement defines a center of revolution radially inward thereof, wherein said center of revolution is locatable generally coincident with said light source.

3. The lamp of claim 2 wherein said concave light reflective surface is concave and has a focus locatable generally coincident with said light source, wherein movement of said reflector alters direction of the light beam.

4. The lamp of claim 3 wherein said light source comprises an LED, and wherein said LED is mounted on a side of said housing to emit light toward said reflector.

5. The lamp of claim 4 wherein said light reflective surface comprises a portion of a parabola which is lateral to a central Z-axis of the parabola.

6. The lamp of claim 5 wherein said light source comprises an LED mounted on a circuit board module, and wherein said LED and its circuit board module are readily removable from the lamp for replacement of said LED, and wherein said circuit board module is mounted to a metal heat sink, and wherein said heat sink is mounted to said housing externally of said housing and on a side of said housing.

7. The lamp of claim 6 wherein said circuit board module extends through said at least one opening and being removable through said side opening.

8. The lamp of claim 7 and further comprising a curved track along which said reflector is movable to cause said light reflective surface to move along said curved path-of-movement.

9. The lamp of claim 8 and further comprising a gear-gear rack interface to move said reflector's light reflective surface along a curved path-of-movement.

10. The lamp of claim 9 wherein said gear comprises a shaft having longitudinal gear splines thereon, and further comprising a plurality of curved gear racks engaging said gear splines for simultaneous movement of said plurality of curved gear racks.

11. The lamp of claim 4 wherein said light source comprises an LED mounted on a circuit board module, and wherein said LED and its circuit board module are readily removable from the lamp for replacement of said LED.

12. The lamp of claim 11 wherein said circuit board module is mounted to a metal heat sink, and wherein said heat sink is mounted to said housing externally of said housing and on a side of said housing.

13. The lamp of claim 1 wherein said light reflective surface is concave and is generally parabolic and has a parabola focal point locatable generally coincident with said light source, wherein movement of said reflector alters direction of the light beam.

14. The lamp of claim 1 wherein said light source comprises an LED, and wherein said LED is mounted on a side of said housing to emit light toward said reflector.

15. The lamp of claim 1 wherein said light reflective surface comprises a portion of a parabola which is lateral to a central Z-axis of the parabola.

16. The lamp of claim 15 wherein said light source comprises an LED mounted on a circuit board module, and wherein said LED and its circuit board module are readily removable from the lamp for replacement of said LED, and wherein said circuit board module is mounted to a metal heat sink, and wherein said heat sink is mounted to said housing externally of said housing and on a side of said housing.

17. The lamp of claim 1 and further comprising a curved track along which said reflector is movable to cause said light reflective surface to move along said curved path-of-movement.

18. The lamp of claim 1 and further comprising a gear-gear rack interface to move said reflector's light reflective surface along a curved path-of-movement.

19. The lamp of claim 18 wherein said gear comprises a shaft having longitudinal gear splines thereon, and further comprising a plurality of curved gear racks engaging said gear splines for simultaneous movement of said plurality of curved gear racks.

20. The lamp of claim 1 , comprising:
a lens inside said housing between said at least one light source and said reflector, wherein light from said at least one light source passes through said lens before reaching said reflector.

21. A lamp, comprising:
a housing defining at least one opening through a side of said housing;
at least one light source positioned outside said housing arranged and configured to project light into said housing through said at least one opening;
a reflector inside said housing comprising a light reflective surface facing said light source;
wherein said at least one opening is between said light source outside said housing and said reflector inside said housing;
wherein said reflector and its light reflective surface is movable with respect to said light source along a curved path-of-movement of said reflector to reflect at least a portion of light from said light source to provide an adjustable, generally forwardly directed light beam; and,
a curved track along which said reflector is movable to cause said light reflective surface to move along said curved path-of-movement.

22. The lamp of claim 21 and further comprising a gear-gear rack interface to move said reflector's light reflective surface along a curved path-of-movement.

23. The lamp of claim 22 wherein said gear comprises a shaft having longitudinal gear splines thereon, and further comprising a plurality of curved gear racks engaging said gear splines for simultaneous movement of said plurality of curved gear racks.

24. The lamp of claim 21 wherein said curved path-of-movement defines a center of revolution radially inward thereof, wherein said center of revolution is locatable generally coincident with said light source.

25. The lamp of claim 21 wherein said concave light reflective surface is generally parabolic and has a parabola focal point locatable generally coincident with said light source, wherein movement of said reflector alters direction of the light beam.

26. The lamp of claim 21 wherein said light source comprises an LED, and wherein said LED is mounted on a side of said housing to emit light toward said reflector.

27. The lamp of claim 21 , comprising:
a lens inside said housing between said at least one light source and said reflector, wherein light from said at least one light source passes through said lens before reaching said reflector.

28. A lamp, comprising:
a housing defining at least one opening through a side of said housing;
at least one light source comprising an LED mounted outside said housing on a metal heat sink, wherein said heat sink is mounted to said housing outside of said housing and on a s

Assignees

• Grote Industries Inc

Inventors

• Turley Jr Richard E
• Reese Rob E

Classifications

• F21S41/29

  Attachment thereof (for achieving variable light distribution F21S41/63) · CPC title

• F21S45/49

  Attachment of the cooling means · CPC title

• F21S41/39

  Attachment thereof (achieving variable light distribution by movable reflectors F21S41/675) · CPC title

• F21V14/04 Primary

  by movement of reflectors {(in vehicle head lamps F21S41/675)} · CPC title

• F21S45/48

  with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device · CPC title