Retrofit-style lamp and fixture, each including a one-dimensional linear batwing lens

• US 9,453,619 B2
• Filed: 02/15/2016
• Issued: 09/27/2016
• Est. Priority Date: 12/11/2009
• Status: Active Grant

• Current Assignee: ABL IP Holding LLC (Acuity Brands, Inc.)
• Original Assignee: OSRAM Sylvania Inc. (Ams-Osram AG)
• Inventors: Yang, Yi, Harriott, Douglas, Li, Li
• Primary Examiner(s): Ton, Anabel
• Application Number:
  US15/043,647
• Publication Number:
  US 20160161063A1
• Time in Patent Office: 225 Days
• US Class Current: 1/1
• 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 emitting diodes; and

a one-dimensional linear batwing lens, wherein the one-dimensional linear batwing lens beam shapes light emitted by at least two light emitting diodes of the plurality of light emitting diodes, wherein the one-dimensional linear batwing lens extends in one direction in a linear direction; and

wherein the plurality of light emitting diodes are located in a region beneath a central portion extending in the linear direction of the one-dimensional linear batwing lens to produce, through beam shaping, a substantially batwing and/or batwing-type light distribution from the plurality of light emitting diodes.

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

3. The retrofit-style lamp of claim 2, wherein the extrudable one-dimensional linear batwing lens is co-extrudable;

wherein preferably 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.

4. The retrofit-style lamp of claim 2, wherein the extrudable one-dimensional linear batwing lens is co-extrudable;

wherein preferably 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.

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

6. 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 emitting diodes than the lower portion, and wherein the upper portion is divided into a first non-planar section and a second non-planar section, and wherein the first non-planar section and the second non-planar section are similarly shaped.

7. 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 emitting diodes than the lower portion, and wherein the upper portion is divided into a first non-planar section and a second non-planar section, and wherein the first non-planar section and the second non-planar section are of different shapes.

8. 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 emitting diodes than the lower portion, and wherein the upper portion includes a dip, wherein the dip is characterized by an angle.

9. The retrofit-style lamp of claim 1, further comprising:

a housing, wherein the plurality of light emitting diodes is arranged within a space defined in part by the housing.

10. The retrofit-style lamp of claim 9, wherein the one-dimensional linear batwing lens is coupled to the housing.

11. The retrofit-style lamp of claim 10, 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.

12. The retrofit-style lamp of claim 11, 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.

13. The retrofit-style lamp of claim 12, further comprising:

an endcap, wherein the endcap is connectable between one of the pair of electrical connectors and the lens-housing combination.

14. An enclosed storage structure lighting fixture, comprising:

a housing;

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

a retrofit-style lamp comprising;

a plurality of light emitting diodes; and

a one-dimensional linear batwing lens, wherein the one-dimensional linear batwing lens beam shapes light emitted by at least two light emitting diodes of the plurality of light emitting diodes, wherein the one-dimensional linear batwing lens extends in one direction in a linear direction; and

wherein the plurality of light emitting diodes are located in a region beneath a central portion extending in the linear direction of the one-dimensional linear batwing lens to produce, through beam shaping, a substantially batwing and/or batwing-type light distribution from the plurality of light emitting diodes.

15. The enclosed storage structure lighting fixture of claim 14, wherein the one-dimensional linear batwing lens is co-extrudable, and wherein preferably 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.

16. The enclosed storage structure lighting fixture of claim 14, wherein the one-dimensional linear batwing lens is scalable in relation to a number of light emitting diodes comprising the plurality of light emitting diodes.

17. The enclosed storage structure lighting fixture of claim 14, 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 emitting diodes than the lower portion, and wherein the upper portion is divided into a first non-planar section and a second non-planar section, and wherein the first non-planar section and the second non-planar section are similarly shaped.

18. The enclosed storage structure lighting fixture of claim 14, 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 emitting diodes than the lower portion, and wherein the upper portion is divided into a first non-planar section and a second non-planar section, and wherein the first non-planar section and the second non-planar section are of different shapes.

19. The enclosed storage structure lighting fixture of claim 14, 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 emitting diodes than the lower portion, and wherein the upper portion includes a dip, wherein the dip is characterized by an angle.

20. The enclosed storage structure lighting fixture of claim 14, 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 emitting diodes.