Light emitting diode (L.E.D.) lighting fixtures with emergency back-up and scotopic enhancement

• US 20080037257A1
• Filed: 05/18/2007
• Published: 02/14/2008
• Est. Priority Date: 12/11/2002
• Status: Abandoned Application

• Current Assignee: Charles Bolta
• Original Assignee: Charles Bolta
• Inventors: Bolta, Charles
• Application Number:
  US11/804,453
• Publication Number:
  US 20080037257A1
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21K 9/233 specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps
• CPC Class Codes: F21K 9/69 Details of refractors forming part of the light source
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21S 9/022 Emergency lighting devices
• CPC Class Codes: F21V 19/001 the light sources being semiconductors devices, e.g. LEDs
• CPC Class Codes: F21V 29/71 using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
• CPC Class Codes: F21V 29/75 with fins or blades having different shapes, thicknesses or spacing
• CPC Class Codes: F21V 29/76 with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
• CPC Class Codes: F21V 29/777 the planes containing the fins or blades having directions perpendicular to the light emitting axis
• CPC Class Codes: F21V 5/02 of prismatic shape F21V5/04 takes precedence
• CPC Class Codes: F21V 9/08 for producing coloured light, e.g. monochromatic; for reducing intensity of light with provision for controlling the colour F21V9/40
• CPC Class Codes: F21V 9/30 Elements containing photoluminescent material distinct from or spaced from the light source shades F21V1/17; globes, bowls or cover glasses F21V3/08, F21V3/12; refractors F21V5/10; reflectors F21V7/26, F21V7/30; elements with provision for controlling the spectral properties or intensity F21V9/40
• CPC Class Codes: F21V 9/40 with provision for controlling spectral properties, e.g. colour, or intensity
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An L.E.D. lighting fixture is provided. The lighting fixture comprises at least one heat transfer mounting bar, at least one emitter plate secured to the mounting bar, an array of L.E.D. lights secured to each emitter plate, and a diffusion lens mounted over the L.E.D. array. A method for providing light is also provided.

Claims

1. An L.E.D. lighting fixture, the lighting fixture comprising:

at least one heat transfer mounting bar;

at least one emitter plate secured to the mounting bar;

an array of L.E.D. lights secured to each emitter plate; and

a diffusion lens mounted over the L.E.D. array.

2. The lighting fixture of claim 1 wherein the diffusion lens has both vertical and horizontal element construction.

3. The lighting fixture of claim 1 wherein the diffusion lens is configured in a substantially arch configuration.

4. The lighting fixture of claim 1 wherein the diffusion lens is constructed from a light radiant plastic selected from the group consisting of translucent white plastic and clear plastic.

5. The lighting fixture of claim 1 and further comprising:

a texture on an inside surface of the diffusion lens.

6. The lighting fixture of claim 1 wherein the diffusion lens has multiple angled sublenses of a patterned prismatic lens.

7. The lighting fixture of claim 6 wherein the multiple angled sublenses are arranged in a random pattern with each sublens being angled in a different direction than an adjacent sublens.

8. The lighting fixture of claim 1 and further comprising:

a plurality of mounting bars, the mounting bars creating air channels between each adjacent mounting bar; and

a fixture body, the mounting bars and L.E.D. arrays mountable within the fixture body;

wherein the lens cover is mounted to the fixture body over the mounting bars and L.E.D. arrays.

9. The lighting fixture of claim 8 wherein the lens cover is a prismatic lens cover for diffusing the light evenly in all directions.

10. A method for providing light, the method comprising:

providing at least one heat transfer mounting bar;

securing at least one emitter plate to the mounting bar; and

securing an array of L.E.D. lights to each emitter plate.

11. The method of claim 10 and further comprising:

mounting a diffusion lens over the L.E.D. array.

12. The method of claim 10 wherein the diffusion lens has both vertical and horizontal element construction.

13. The method of claim 10 and further comprising:

configuring the diffusion lens in a substantially arch configuration.

14. The method of claim 10 and further comprising:

constructing the diffusion lens from a light radiant plastic selected from the group consisting of translucent white plastic and clear plastic.

15. The method of claim 10 and further comprising:

texturing an inside surface of the diffusion lens.

16. The method of claim 10 wherein the diffusion lens has multiple angled sublenses of a patterned prismatic lens.

17. The method of claim 16 and further comprising:

angling each sublens in a different direction than an adjacent sublens.

18. The method of claim 10 and further comprising:

blending the multiple light sources into one congruent light source, reducing shadows.

19. The method of claim 10 and further comprising:

creating air channels between each adjacent mounting bar;

providing a fixture body;

positioning the mounting bars and L.E.D. arrays within the fixture body; and

mounting the lens cover to the fixture body over the mounting bars and L.E.D. arrays.

20. The method of claim 19 and further comprising:

introducing air into the fixture body; and

exhausting air from the fixture body.