Illumination device

• US 20100165617A1
• Filed: 01/06/2010
• Published: 07/01/2010
• Est. Priority Date: 04/23/2008
• Status: Active Grant

• Current Assignee: Designs For Vision, Inc.
• Original Assignee: Designs For Vision, Inc.
• Inventors: Braganca, Kenneth, Yan, Peter, Feinbloom, Richard E., Botta, Michael
• Granted Patent: US 7,980,729 B2
• Time in Patent Office: Days
• US Class Current: 362/231
• CPC Class Codes: F21V 14/06 by movement of refractors in vehicle head lamps F21S41/635
• CPC Class Codes: F21V 19/003 Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
• CPC Class Codes: F21V 19/04 with provision for changing light source, e.g. turret auxiliary devices for cleaning, placing, or removing incandescent lamps H01K3/32, fluorescent lamps H01J9/006
• CPC Class Codes: F21V 23/00 Arrangement of electric circuit elements in or on lighting devices characterised by cooling arrangements F21V29/508
• CPC Class Codes: F21V 33/0052 Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
• CPC Class Codes: F21W 2131/202 for dentistry
• CPC Class Codes: F21W 2131/205 for operating theatres
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2105/12 characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

Disclosed is an illumination device for projecting a substantially uniform light at a remote distance. The illumination device comprises a mounting assembly divided into a plurality of sections, each section comprising a plurality of light emitting sources arranged substantially equi-distant along a circumference of said assembly at an angle to project a light image at the remote distance, an contact plate connected via a central axis with, and fixed to, the mounting assembly, the contact plate providing an electrical contact to each of the light emitting devices, a plurality of lensing assemblies equal in number to plurality of sections axially aligned with the mounting assembly, the lensing assembly aligned with a select one of the light emitting sources in a corresponding section, the light emitting source being positioned in front of a focal point of the lensing assembly, each lensing assembly comprising at least one optically transparent lens determining said lensing assembly focal point, and means for shifting said contact plate and mounting assembly to align a select one of said light emitting devices with a corresponding lensing assembly. In another aspect of the invention, the lens assemblies may be positioned linearly and light emitting sources are positioned along an edge of the mounting assemblies, wherein the LEDs are positioned in front of the lensing assemblies by shifting each of the mounting assemblies.

Claims

1. An illumination device for projecting a substantially uniform light at a remote distance, said device comprising:

a mounting assembly having a central axis;

a plurality of light emitting sources arranged along a circumference of said mounting assembly for projecting a light image;

a plurality of lensing assemblies connected via said central axis and adjacent said plurality of light emitting sources, each of said lensing assemblies comprising one or more optically transparent lens with a focal point, each of said lensing assemblies capable of being optically aligned with one of said plurality of light emitting sources; and

a contact plate connected via said central axis with said mounting assembly for providing an electrical contact to one or more of said plurality of light emitting sources, said contact plate and mounting assembly being adjustable for aligning one or more of said plurality of light emitting sources with one or more of said plurality of lensing assemblies to project a light image to a remote distance.

2. The device according to claim 1, wherein said light emitting sources are selected from the group consisting of light emitting devices (LEDs) and LED arrays.

3. The device according to claim 2, wherein said light emitting sources have color temperatures ranging between about 2400-8000°

K. and wavelengths ranging between about 300-600 nm.

4. The device according to claim 1, wherein said mounting assembly comprises:

a plurality of wells arranged around the circumference of said mounting assembly for receiving a corresponding number of mounts; and

a plurality of apertures associated with said wells.

5. The device according to claim 4, wherein said mounts comprise:

a slip-fit connection with said plurality of wells, wherein said mounts are maintained in position with a pin placed through said apertures associated with said wells.

6. The device according to claim 5, wherein said wells are formed in said mounting assembly to permit said mounts to be oriented at an angle.

7. The device according to claim 6, wherein said angle is about 45 degrees with respect to said pin.

8. The device according to claim 1, wherein said contact plate and mounting assembly are adjusted manually, mechanically, electrically, electro-mechanically, and by combinations thereof.

9. The device according to claim 1, further comprising:

a television camera mounted along said central axis.

10. The device according to claim 1, further comprising:

a centrally positioned light source mounted along said central axis.

11. The device according to claim 11, wherein said plurality of lens assemblies are capable of being adjusted.

12. An illumination device to project a uniform light at a remote distance, said device comprising:

a plurality of mounting assemblies arranged substantially in parallel and joined by a shaft passing through a central port in each of said assemblies, each of said assemblies including a plurality of light emitting sources positioned along an edge thereof; and

a plurality of lens assemblies corresponding to said plurality of mounting assemblies and disposed adjacent thereto, each of said lensing assemblies comprising one or more optically transparent lens and capable of being optically aligned with one of said light emitting sources,

wherein said mounting assemblies are adjustable for aligning one or more of said plurality of light emitting source with one or more of said plurality of lensing assemblies.

13. The device according to claim 12, wherein said light emitting sources are selected from the group consisting of light emitting devices (LEDs) and LED arrays.

14. The device according to claim 13, wherein said light emitting devices have color temperatures ranging between about 2400-8000°

K. and wavelengths ranging between about 300-600 nm.

15. The device according to claim 12, wherein each of said mounting assemblies comprises:

a plurality of wells arranged along the edge of said mounting assembly for receiving a corresponding number of mounts; and

a plurality of apertures associated with said wells.

16. The device according to claim 15, wherein said wells are formed in said mounting assembly to permit said mounts to be oriented at an angle.

17. The device according to claim 12, wherein said mounting assemblies are adjusted manually, mechanically, electrically, electro-mechanically, and by combinations thereof.

18. The device according to claim 12, further comprising:

a television camera mounted along said central axis.

19. The device according to claim 12, further comprising:

a centrally positioned light source mounted along said central axis.

20. The device according to claim 12, wherein said plurality of lens assemblies are capable of being adjusted.