LED STRIP LAMP AND REFLECTOR THEREFOR

• US 20140009942A1
• Filed: 07/01/2013
• Published: 01/09/2014
• Est. Priority Date: 07/06/2012
• Status: Abandoned Application

• Current Assignee: LED-Linear GmbH (Fagerhult Group AB)
• Original Assignee: Michael Kramer
• Inventors: KRAMER, Michael
• Application Number:
  US13/932,125
• Publication Number:
  US 20140009942A1
• Time in Patent Office: Days
• US Class Current: 362/296.07
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21V 17/164 the parts being subjected to bending, e.g. snap joints
• CPC Class Codes: F21V 29/505 of reflectors
• CPC Class Codes: F21V 7/005 with an elongated shape to cooperate with linear light sources
• CPC Class Codes: F21V 7/09 with a combination of different curvatures
• CPC Class Codes: F21V 7/10 Construction
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A reflector for a strip-type LED lamp. The reflector is generally of U-section, longitudinally elongated, and formed by a longitudinally extending floor formed with a plurality of holes adapted to be aligned with respective LEDs of the lamp, and a pair of longitudinally extending side walls projecting transversely from outer edges of the floor and diverging away from the floor. The side walls have respective outer edges deflectable elastically transversely toward each other.

Claims

1. A reflector for a strip-type LED lamp, the reflector being generally of U-section, longitudinally elongated, and formed by:

a longitudinally extending floor formed with a plurality of holes adapted to be aligned with respective LEDs of the lamp; and

a pair of longitudinally extending side walls projecting transversely from outer edges of the floor and diverging away from the floor, the side walls having respective outer edges deflectable elastically transversely toward each other.

2. The LED lamp reflector defined in claim 1, wherein the reflector is symmetrical to a longitudinally extending plane bisecting the floor and between the side walls.

3. The LED lamp reflector defined in claim 1, wherein at least one of the side walls is formed with an outwardly bent planar edge flange forming the respective outer edge.

4. The LED lamp reflector defined in claim 3, wherein the edge flange has a transverse dimension equal to 15% to 40% of the transverse spacing of the edge flange from the floor.

5. The LED lamp reflector defined in claim 4 wherein the dimension is equal to 20% to 30% of the transverse spacing of the edge flange from the floor.

6. The LED lamp reflector defined in claim 3, wherein only one of the side walls is formed with the outwardly bent planar edge flange.

7. The LED lamp reflector defined in claim 6, wherein the one side wall is complementarily shaped to an inner face of a side bracket of the light fixture between the respective flange and the floor.

9. The LED lamp reflector defined in claim 3, wherein each of the side walls is formed with an outwardly bent planar edge flange forming the respective outer edge.

10. The LED lamp reflector defined in claim 9, wherein both of the edge flanges are coplanar and the reflector is symmetrical to a longitudinally extending symmetry plane bisecting the floor and perpendicular to the edge flanges.

11. The LED lamp reflector defined in claim 1, wherein the floor is formed with a longitudinally extending row of holes at least some of which are oriented to align with respective LEDs of the lamp.

12. The LED lamp reflector defined in claim 11, wherein some of the holes are oriented to align with respective heat-generating parts of the lamp to cool same.

13. The LED lamp reflector defined in claim 11 wherein the holes are of different shapes.

14. The LED lamp reflector defined in claim 1, wherein the reflector is asymmetrical with respect to a longitudinally extending plane bisecting the floor.

15. The LED lamp reflector defined in claim 14, wherein the reflector is asymmetrical because of at least one of the following conditions:

one of the side walls is closer to the symmetry plane than the other,

one of the side walls extends from the floor at an angle different from an angle between the other side wall and the floor,

one of the side walls is curved differently from the other side wall, and

only one of the side walls is formed with an outwardly bent planar edge flange not parallel to the rest of the one side.

16. The LED lamp reflector defined in claim 1 wherein the floor is formed centered on respective axes perpendicular to the floor with respective downwardly projecting axially symmetrical collars.

17. In combination with the LED lamp reflector defined in claim 1,

a generally U-section adapter profile having a longitudinally extending floor web and a pair of side brackets extending outward from outer edges of the floor and flaring away from the floor, each side edge having at an outer edge an inwardly projecting ridge formation, the reflector being fittable in the profile with the outer edges engaged under the ridges and bearing elastically outward on inner faces of the side brackets.

18. The combination defined in claim 17, wherein the floor web of the profile is provided with a row of LEDs and heat-generating circuit elements, the floor of the reflector being formed with throughgoing holes oriented to align with the LEDs and elements.

19. The combination defined in claim 18 wherein the holes alignable with the LEDs are of circular shape and the holes alignable with the elements are rectangular.

20. The combination defined in claim 17, further comprising:

a mass of translucent potting filling the profile between the side brackets and wholly covering the reflector.