Dual zone lighting apparatus

• US 8,585,238 B2
• Filed: 05/13/2011
• Issued: 11/19/2013
• Est. Priority Date: 05/13/2011
• Status: Active Grant

• Current Assignee: LSI Industries Incorporated
• Original Assignee: LSI Industries Incorporated
• Inventors: Krogman, Mark James
• Primary Examiner(s): BRUCE, DAVID VERNON
• Application Number:
  US13/107,164
• Publication Number:
  US 20120287610A1
• Time in Patent Office: 921 Days
• Field of Search: 362/103, 362/104, 362/128, 362/122, 362/158, 362/311.02, 362/311.04
• US Class Current: 362/235
• CPC Class Codes: F21K 9/60 Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
• CPC Class Codes: F21S 8/00 Lighting devices intended for fixed installation F21S9/00, F21S10/00 take precedence; using a string or strip of light sources F21S4/00
• CPC Class Codes: F21S 8/083 of bollard type, i.e. with lighting fixture integrated into the standard or mounted on top of it and having substantially the same diameter
• CPC Class Codes: F21V 19/001 the light sources being semiconductors devices, e.g. LEDs
• CPC Class Codes: F21V 21/00 Supporting, suspending, or attaching arrangements for lighting devices F21V17/00, F21V19/00 take precedence; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q, stands for supporting apparatus or articles in general F16M11/00; Hand grips
• CPC Class Codes: F21Y 2107/00 Light sources with three-dimensionally disposed light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A lighting apparatus comprising a first lighting assembly comprising at least one lower light source configured to cast light over at least a near field and a second lighting assembly comprising at least one upper light source configured to cast light over at least a far field, the second lighting assembly mounted above the first lighting assembly.

Claims

1. A lighting apparatus comprising:

a) a first lighting assembly comprising at least one lower light source configured to cast light over east a near field;

b) a second lighting assembly comp sing at east one upper light source configured to cast light over at least a far field, the second lighting assembly mounted above the first lighting assembly; and

c) the at least one upper light source directed downward at an angle of approximately 25.5°

from horizontal and the at east one lower light source directed downward at an angle from horizontal of approximately 38.6°

.

2. The lighting apparatus of claim 1 wherein at least one of the upper and lower light sources is an LED.

3. The lighting apparatus of claim 1 wherein the upper light sources are configured to cast a narrow flood beam.

4. The lighting apparatus of claim 1 wherein the lower light sources are configured to cast a wide flood beam.

5. The lighting apparatus of claim 1 wherein the first angle is smaller than the second angle.

6. The lighting apparatus of claim 1 configured as a bollard wherein the second lighting assembly is located immediately over the first lighting assembly.

7. The lighting apparatus of claim 1 wherein at least one of the first and second lighting assemblies further comprises a light source mount comprising (a) a base defining a plane, (b) a plurality of tongues extending from the base at an angle to said plane, and (c) at least one of the plurality of tongues being configured to receive the light source.

8. A bollard configured as a column with an outer shell, the bollard comprising:

a) a lower light aperture adjacent the shell and a lower lighting assembly comprising at least one lower light source directed downward at a second angle from horizontal to cast light over at least a near field; and

b) an upper light aperture adjacent the shell and a upper lighting assembly comprising at least one upper light source directed downward at a first angle from horizontal to cast light over at least a far field, the upper lighting assembly mounted above the first lighting assembly and the first angle is smaller than the second angle.

9. The bollard of claim 8 wherein at least one of the upper and lower light sources is an LED.

10. The bollard of claim 8 wherein the upper light sources are configured to cast a narrow flood beam.

11. The bollard of claim 8 wherein the lower light sources are configured to cast a wide flood beam.

12. The bollard of claim 8 wherein the first angle is approximately 25.5°

and the second angle is approximately 38.6°

.

13. The bollard of claim 8 configured as a bollard wherein the upper lighting assembly is located immediately over the first lighting assembly.

14. The bollard of claim 8 wherein at least one of the lower and second lighting assemblies further comprises a light source mount comprising (a) a base defining a plane, (b) a plurality of tongues extending from the base at an angle to said plane, and (c) at least one of the plurality of tongues being configured to receive the light source.

15. A light source mount for a lighting assembly, the light source mount comprising:

a) a base defining a plane and a perimeter;

b) a plurality of tongues extending from the perimeter of the base at an angle to said plane; and

c) each tongue configured to receive one or more light sources.

16. The light source mount of claim 15, wherein each light source is comprised of an LED.

17. The light source mount of claim 15, wherein each of the plurality of tongues extends from the base at the same angle to the plane.

18. The light source mount of claim 15, wherein the plurality of tongues extend froze the base about the entirety of the perimeter.

19. A bollard configured as a column with outer she the bollard comprising:

a) a lower light aperture adjacent the shell and a lower lighting assembly comprising at least one lower light source directed downward at a second angle from horizontal to cast light over at least a near field; and

b) an upper light aperture adjacent the shell and an upper lighting assembly comprising at least one upper light source directed downward at a first angle from horizontal to cast light over at east a far field, the upper lighting assembly mounted above the lower lighting assembly and the first angle is approximately 25.5° and

the second angle is approximately 38.6°

.

20. A bollard configured as a column with an outer shell, the bollard comprising:

a) a lower light aperture adjacent the shell and a lower lighting assembly comprising at least one lower light source configured to cast light over at least a near field;

b) an upper light aperture adjacent the shell and an upper lighting assembly comprising at least one upper light source configured to cast light over at least a far field, the upper lighting assembly mounted above the lower lighting assembly; and

c) at least one of the lower and upper lighting assemblies further comprises a light source mount comprising (a) a base defining a plane, (b) a plurality of tongues extending from the base at an angle to said plane, and (c) at least one of the plurality of tongues being configured to receive a lower or upper light source.

21. A light source mount for a lighting assembly, the light source mount comprising:

a) a base defining a plane and a perimeter;

b) a plurality of tongues extending from the base about the entirety of the perimeter at an angle to said plane; and

c) each tongue configured to receive one or more light sources.