Lighting arrangement using LEDs

• US 8,449,140 B2
• Filed: 09/15/2010
• Issued: 05/28/2013
• Est. Priority Date: 09/18/2009
• Status: Active Grant

• Current Assignee: C-M Glo, LLC
• Original Assignee: C-M Glo, LLC
• Inventors: Martin, John D., Lutz, Chamy ChiaChen, Small, Lisa M.
• Primary Examiner(s): Alavi, Ali
• Application Number:
  US12/882,910
• Publication Number:
  US 20110069486A1
• Time in Patent Office: 986 Days
• Field of Search: 362/363, 362/219, 362/240, 362/246, 362/244, 362/217.02
• US Class Current: 362/235
• CPC Class Codes: F21V 3/04 characterised by materials, surface treatments or coatings
• CPC Class Codes: F21W 2111/00 Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
• 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]
• CPC Class Codes: G09F 13/0404 the light source being enclosed in a box forming the character of the sign
• CPC Class Codes: G09F 13/0409 Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency arrangements of reflectors G09F13/14
• CPC Class Codes: G09F 13/0413 Frames or casing structures therefor
• CPC Class Codes: G09F 13/08 using both translucent and non-translucent layers
• CPC Class Codes: G09F 13/22 electroluminescent electroluminescent light sources per se H05B33/00
• CPC Class Codes: G09F 2013/222 with LEDs

Abstract

A lighting arrangement using LEDs that has an elongated translucent diffuser having a flat upper surface along the length of the diffuser. The transverse cross-section of the elongate translucent diffuser may have various shapes, all having substantially flat tops, including but not limited to quadrangular, rectangular, trapezoidal, and non-isosceles variations of these shapes. The elongated translucent diffuser is mounted on an elongated housing of substantially the same length to support the diffuser. The elongated housing may be solid or hollow and may contain the LEDs and circuit board, or the LEDs and circuit board may be contained within the elongated translucent diffuser. The LEDs are configured to transmit light through the diffuser so that the emitted light simulates light from a traditional neon tube.

Claims

1. A simulated neon light comprising,

at least one elongated translucent diffuser having an inner surface, an outer surface, and a hollow interior wherein the outer surface has a flat top portion extending substantially over the length of the elongated translucent diffuser, and wherein the elongated translucent diffuser has a pair of parallel, opposing side wall portions extending over the length of the elongated translucent diffuser and which extend upwardly from a bottom of the elongated translucent diffuser;

a housing that is configured for attachment to the translucent diffuser;

a plurality of light emitting diodes (LEDs) aligned with a long axis of the elongated translucent diffuser whereby the light emitting diodes when energized emit light striking the inner surface of the elongated translucent diffuser wherein a portion of the light striking the inner surface is diffused and emitted by the flat top portion of the outer surface; and

an electrical power source for energizing the light emitting diodes.

2. The simulated neon light of claim 1 wherein the elongated housing has an interior space and at least one open side.

3. The simulated neon light of claim 1 wherein the elongated housing is substantially solid.

4. The simulated neon light of claim 1 wherein the housing has topmost mounting elements having at least one horizontal surface in communication with at least one elongated translucent diffuser lower surface.

5. The simulated neon light of claim 4 wherein the housing topmost mounting elements further comprise a vertical surface in communication with an elongated translucent diffuser side surface.

6. The simulated neon light of claim 1 wherein the elongated translucent diffuser has a closed boundary extending substantially over the length of the elongated translucent diffuser and forming the hollow interior.

7. The simulated neon light of claim 6 wherein the elongated translucent diffuser comprises an assembly having a top wall portion and a securably attached bottom wall.

8. The simulated neon light of claim 7 wherein the bottom wall is made of a material selected from a group consisting of a transparent, a translucent and a non-opaque material.

9. The simulated neon light of claim 1 wherein a bottom of the diffuser has an opening configured for inserting at least a portion of at least one light emitting diode into the hollow interior of the diffuser.

10. The simulated neon light of claim 1 wherein the side wall portions of the diffuser are substantially orthogonal to the top portion.

11. The simulated neon light of claim 10 wherein the side wall portions of the elongated translucent diffuser are differing heights.

12. The simulated neon light of claim 1 wherein the side wall portions of the diffuser are substantially not orthogonal to the top portion.

13. The simulated neon light of claim 12 wherein the side wall portions of the diffuser further comprise lower portions that are configured for attachment to receiving portions associated with the housing.

14. The simulated neon light of claim 1 further comprising a mounting structure for attaching the LEDs.

15. The simulated neon light of claim 14 wherein the mounting structure is integrated with the elongated housing.

16. The simulated neon light of claim 1 wherein the LEDs are mounted within the housing.

17. A simulated neon light comprising:

at least one elongated translucent diffuser having an inner surface, an outer surface, and a hollow interior, wherein the outer surface has a flat top portion extending substantially over the length of the elongated translucent diffuser, wherein the elongated translucent diffuser further has an open side extending substantially over the length of the elongated translucent diffuser;

a housing that is configured for attachment to the translucent diffuser;

a plurality of light emitting diodes contained within the housing and aligned with a long axis of the elongated translucent diffuser whereby the light emitting diodes when energized emit light striking the inner surface of the elongated translucent diffuser, wherein a portion of the light striking the inner surface is diffused and emitted by the flat top portion of the outer surface; and

an electrical power source for energizing the light emitting diodes.

18. The simulated neon light of claim 17 wherein the outer surface of the elongated translucent diffuser has two substantially flat sides extending substantially over the length of the elongated translucent diffuser.

19. The simulated neon light of claim 18 wherein the diffuser has sides that are substantially not orthogonal to the top portion.

20. The simulated neon light of claim 19 wherein the sides further comprise lower portions that are configured for attachment to receiving portions associated with the housing.

21. The simulated neon light of claim 18 wherein the are substantially orthogonal to the top portion.

22. The simulated neon light of claim 21 wherein the elongated translucent diffuser sides are differing heights.

23. The simulated neon light of claim 17 wherein the housing has topmost mounting elements having at least one upstanding surface that faces and engages at least one elongated translucent diffuser side surface.

24. A simulated neon light comprising:

at least one elongated translucent diffuser having an inner surface, an outer surface, and a hollow interior, wherein the outer surface has a flat top portion extending substantially over the length of the elongated translucent diffuser, and wherein the elongated translucent diffuser has a pair of side walls extending over the length of the elongated translucent diffuser, wherein the side walls have different heights;

a housing that is configured for attachment to the translucent diffuser;

a plurality of light emitting diodes contained within the housing and aligned with a long axis of the elongated translucent diffuser whereby the light emitting diodes when energized emit light striking the inner surface of the elongated translucent diffuser, wherein a portion of the light striking the inner surface is diffused and emitted by the flat top portion of the outer surface; and

an electrical power source for energizing the light emitting diodes.