LED lighting apparatus with swivel connection

• US 8,928,025 B2
• Filed: 01/05/2012
• Issued: 01/06/2015
• Est. Priority Date: 12/20/2007
• Status: Active Grant

• Current Assignee: Ilumisys Incorporated (Altair Engineering Incorporated)
• Original Assignee: Ilumisys Incorporated (Altair Engineering Incorporated)
• Inventors: Simon, David L., Ivey, John
• Primary Examiner(s): Page, Dale E
• Application Number:
  US13/343,766
• Publication Number:
  US 20120099322A1
• Time in Patent Office: 1,097 Days
• Field of Search: 257/99, 257/81, 257/E33.058
• US Class Current: 257/99
• CPC Class Codes: F21K 9/272 Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts F21K9/278 takes precedence
• CPC Class Codes: F21K 9/65 specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
• CPC Class Codes: F21V 14/02 by movement of light sources in vehicle head lamps F21S41/657
• CPC Class Codes: F21V 19/02 with provision for adjustment, e.g. for focusing
• 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

Disclosed is a LED lighting apparatus with one or more swivel connections. The LED lighting apparatus includes a housing with at least one end, at least one light emitting diode extending along the housing and at least one end cap. The end cap has an opening with a sidewall to cap the end of the housing and a surface opposite the opening and spanning the sidewall. At least two pin connectors extend from the surface and are connectable to a standard fluorescent or incandescent light fixture. Various configurations are described such that the housing will rotate within the end caps with application of a rotational force after connection of the pin connectors to the light fixture to adjust the light output direction of the LED lighting apparatus.

Claims

1. An LED lighting apparatus configured as a single package sized for use in a light fixture with a socket, comprising:

a housing with at least one end;

a connector rotatably connectable to the socket, the connector located at the at least one end of the housing, such that the housing and the connector in conjunction at least partially define the package;

at least one light emitting diode inside the housing; and

a gear member coupled to the at least one end of the housing, wherein the housing is selectively rotatable relative to the gear member by the application of a rotational force to align the at least one light emitting diode with respect to the connector, the rotational force being greater than that for rotatably connecting the connector to the socket.

2. The apparatus of claim 1, further comprising an end cap carrying the connector over the at least one end, the end cap having a surface perpendicular to a longitudinal axis of the housing on which the gear member is coupled.

3. The apparatus of claim 2, wherein the gear member is located within an aperture of the surface, the gear member comprising a ratchet gear and a pawl formed from an edge of the surface forming the aperture.

4. The apparatus of claim 3, wherein the pawl extends from the edge of the surface into the aperture, the pawl configured to move against the ratchet gear as the housing is rotated.

5. The apparatus of claim 3, wherein the connector extends from the edge of a disk coupled to the end cap for rotation within the aperture, the ratchet gear is formed on an edge of the disk and the pawl extends from the edge of the surface into the aperture for movement against the ratchet gear as the housing is rotated, the gear member and the connector configured to be stationary after the connector is connected to the fixture.

6. The apparatus of claim 3 further comprising a first projection extending from the end cap and a second projection extending from the housing each positioned such that the first and second projections will contact each other to prevent over-rotation of the housing.

7. The apparatus of claim 1, further comprising end cap carrying the connector over the at least one end, the end cap having a surface on which the gear member is coupled.

8. The apparatus of claim 7, wherein the gear member comprises a ratchet gear and a pawl, with the ratchet gear located on the housing and the pawl located on the end cap.

9. The apparatus of claim 8, wherein the ratchet gear is embedded in the housing and the pawl extends from an overlying side wall of the end cap.

10. The apparatus of claim 8, wherein the connector extends from a surface of the end cap perpendicular to a longitudinal axis of the housing.

11. The apparatus of claim 7, wherein the gear member comprises a ratchet gear and a pawl, with the ratchet gear located on the end cap and the pawl located on the housing.

12. The apparatus of claim 11, wherein the pawl extends from a surface of the housing and the ratchet gear is located on an overlying side wall of the end cap.

13. The apparatus of claim 8, wherein the housing is rotatable within the end cap to selectively align the at least one light emitting diode.

14. An LED lighting apparatus comprising:

an elongate housing having a first end and a second end;

a gear member coupled to the first end of the housing, the gear member comprising a gear and a pawl;

at least one light emitting diode extending along the housing;

a first end cap on the first end of the housing and a second end cap on the second end of the housing; and

a first pin connector and a second pin connector, each rotatably connectable to a respective socket of a standard light fixture, the first pin connector located at the first end of the housing and the second pin connector located at the second end of the housing, such that the housing, the first pin connector and the second pin connector in conjunction at least partially define a single package sized for replacing a fluorescent tube in the light fixture, wherein;

the gear is located on one of the first end cap and the housing, and the pawl is located in positional agreement with the gear on another of the first end cap and the housing such that selective rotation of the housing by the application of a rotational force moves the pawl against the gear to align the at least one light emitting diode, the rotational force being greater than that for rotatably connecting the first connector to its respective socket.

15. The apparatus of claim 14, wherein the first end cap has a side wall overlying the first end of the housing and an end wall over the first end, and the gear is located on an interior of the side wall of the end cap with the pawl extending from a surface of the first end.

16. The apparatus of claim 14, wherein the first end cap has a side wall and an end wall, and the gear is located on the end wall of the first end cap.

17. The apparatus of claim 16, wherein the gear is located in an aperture of the end wall and the pawl extends from an edge of the end wall forming the aperture.

18. The apparatus of claim 17, wherein the gear only has teeth around a portion of a circumference of the edge to limit rotation of the housing.

19. The apparatus of claim 14 further comprising a first projection extending from the first end cap and a second projection extending from the housing each positioned such that the first and second stops will contact each other to prevent over-rotation of the housing.

20. An LED-based configured as a single package for replacing a fluorescent light tube in a light fixture with a socket, comprising:

an elongate housing with opposing ends;

a connector rotatably connectable to the socket, the connector located at an end of the housing, such that the housing and the connector in conjunction at least partially define the package;

at least one light emitting diode inside the housing; and

a gear member coupled between the connector and the at least one light emitting diode, the gear member configured to permit selective rotation of the connector relative to the at least one light emitting diode under the application of a rotational force to selectively align the at least one light emitting diode at a plurality of orientations with respect to the connector, the rotational force bring greater than that for rotatably connecting the connector to a socket.