Retrofit-Style Lamp and Fixture, Each Including a One-Dimensional Linear Batwing Lens

• US 20110141729A1
• Filed: 12/11/2009
• Published: 06/16/2011
• Est. Priority Date: 12/11/2009
• Status: Abandoned Application

• Current Assignee: OSRAM Sylvania Inc. (Ams-Osram AG)
• Original Assignee: OSRAM Sylvania Inc. (Ams-Osram AG)
• Inventors: Li, Li, Harriott, Douglas, Yang, Yi
• Application Number:
  US12/636,524
• Publication Number:
  US 20110141729A1
• Time in Patent Office: Days
• US Class Current: 362/235
• 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: F21V 15/013 the housing being an extrusion
• CPC Class Codes: F21V 17/104 using feather joints, e.g. tongues and grooves, with or without friction
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21V 3/04 characterised by materials, surface treatments or coatings
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21W 2131/305 for refrigerators
• 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: G02B 19/0028 refractive and reflective surfaces, e.g. non-imaging catadioptric systems
• CPC Class Codes: G02B 19/0066 in the form of an LED array

Abstract

A retrofit-style lamp is disclosed. The retrofit-style lamp includes a plurality of light sources, and a one-dimensional linear batwing lens. The one-dimensional linear batwing lens beam shapes light emitted by at least two light sources of the plurality of light sources. The retrofit-style lamp also includes a housing including the plurality of light sources, and attached to the one-dimensional linear batwing lens. The combination of housing and lens is then itself fitted with endcaps, including electrical connectors, for placement within a fixture, such as within an existing conventional fluorescent tube fixture located within a storage structure, for example a refrigeration case. Alternatively, the plurality of light sources, the one-dimensional linear batwing lens, and the housing may be formed, along with a power supply, as a standalone retrofit fixture for use in enclosed storage structures, such as refrigeration cases, where the retrofit fixture replaces a conventional fluorescent fixture.

Claims

1. A retrofit-style lamp comprising:

a plurality of light sources; and

a one-dimensional linear batwing lens, wherein the one-dimensional linear batwing lens beam shapes light emitted by at least two light sources of the plurality of light sources.

2. The retrofit-style lamp of claim 1 wherein the at least two light sources of the plurality of light sources are located in a region beneath a central portion of the one-dimensional linear batwing lens.

3. The retrofit-style lamp of claim 1 wherein the plurality of light sources comprises a plurality of light-emitting diodes.

4. The retrofit-style lamp of claim 1 wherein the one-dimensional linear batwing lens is extrudable.

5. The retrofit-style lamp of claim 4 wherein the extrudable one-dimensional linear batwing lens is co-extrudable.

6. The retrofit-style lamp of claim 5 wherein the co-extrudable one-dimensional linear batwing lens is comprised of a first portion and a second portion, wherein the first portion is comprised of a first material, and wherein the second portion is comprised of a second material.

7. The retrofit-style lamp of claim 5 wherein the co-extrudable one-dimensional linear batwing lens is comprised of a first portion and a second portion, wherein the first portion and the second portion are comprised of a material, and wherein the first portion includes a first filter and the second portion includes a second filter.

8. The retrofit-style lamp of claim 1 wherein the one-dimensional linear batwing lens is scalable in relation to a number of light sources comprising the plurality of light sources.

9. The retrofit-style lamp of claim 1 wherein the one-dimensional linear batwing lens includes an upper portion and a lower portion, wherein the upper portion is located farther from the plurality of light sources than the lower portion, and wherein the upper portion is divided into a first non-planar section and a second non-planar section.

10. The retrofit-style lamp of claim 9 wherein the first non-planar section and the second non-planar section are similarly shaped.

11. The retrofit-style lamp of claim 9 wherein the first non-planar section and the second non-planar section are of different shapes.

12. The retrofit-style lamp of claim 1 wherein the one-dimensional linear batwing lens includes an upper portion and a lower portion, wherein the upper portion is located farther from the plurality of light sources than the lower portion, and wherein the upper portion includes a dip.

13. The retrofit-style lamp of claim 12 wherein the dip is characterized by an angle.

14. The retrofit-style lamp of claim 1 further comprising a housing, wherein the plurality of light sources is arranged within a space defined in part by the housing.

15. The retrofit-style lamp of claim 14 wherein the one-dimensional linear batwing lens is coupled to the housing.

16. The retrofit-style lamp of claim 14 further comprising a pair of electrical connectors, wherein a first of the pair of electrical connectors is attached to a first end of the housing, and wherein a second of the pair of electrical connectors is attached to a second end of the housing.

17. The retrofit-style lamp of claim 16 wherein the one-dimensional linear batwing lens is coupled to the housing, forming a lens-housing combination, and wherein the pair of electrical connectors is attached to the lens-housing combination.

18. The retrofit-style lamp of claim 17 further comprising an endcap, wherein the endcap is connectable between one of the pair of electrical connectors and the lens-housing combination.

19. An enclosed storage structure lighting fixture comprising:

a housing;

a power supply, wherein the power supply is connectable to the housing;

a plurality of light sources located in a region defined by the housing, wherein the plurality of light sources receive power from the power supply; and

a one-dimensional linear batwing lens, coupled to the housing, wherein the one-dimensional linear batwing lens beam shapes light emitted by at least two light sources of the plurality of light sources.

20. The enclosed storage structure lighting fixture of claim 19 wherein the one-dimensional linear batwing lens provides a substantially uniform distribution of light within a space defined in part by an enclosed storage structure, by beam shaping light emitted by the plurality of light sources.