Apparatus and method pertaining to light-based power distribution in a vehicle

• US 7,932,626 B2
• Filed: 05/07/2010
• Issued: 04/26/2011
• Est. Priority Date: 10/16/2006
• Status: Active Grant

• Current Assignee: Lightspeed Technologies, LLC (Professional Trading Solutions, Inc.)
• Original Assignee: Embedded Control Systems Inc.
• Inventors: Stoner, Paul Douglas
• Primary Examiner(s): Deberadinis; Robert L.
• Application Number:
  US12/776,012
• Publication Number:
  US 20100213888A1
• Time in Patent Office: 354 Days
• Field of Search: 307/9.1, 307/43
• US Class Current: 307/9.1
• CPC Class Codes: B64D 2221/00 Electric power distribution systems onboard aircraft
• CPC Class Codes: G02B 6/2808 using a mixing element which evenly distributes an input signal over a number of outputs
• CPC Class Codes: G02B 6/4298 coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
• CPC Class Codes: H04B 10/807 Optical power feeding, i.e. transmitting power using an optical signal

Abstract

A vehicle (400) such as an aircraft is provided (101) with a source of light (401). An optical conduit is then used to couple (104) this source of light to a light-to-electricity conversion apparatus (408). which then converts (105) such light into electricity. A rechargeable power supply (407), such as a battery, uses (106) at least part of the electrical power output of the light-to-electricity conversion apparatus to be charged.

Claims

1. A method comprising:

in an aircraft;

providing a source of light;

using an optical conduit, to couple the source of light to a light-to-electricity conversion apparatus;

using the light-to-electricity conversion apparatus to convert light from the source of light into electricity;

using the electricity to charge a rechargeable power supply, that is operably coupled to at least one electrically powered aircraft component such that the electrically powered aircraft component receives operating power from the rechargeable power supply.

2. The method of claim 1 wherein using an optical conduit to couple the source of light to a light-to-electricity conversion apparatus comprises:

using a first optical conduit to couple the source of light to a first light-to-electricity conversion apparatus;

using a second optical conduit that is independent of the first optical conduit to couple the source of light to a second light-to-electricity conversion apparatus.

3. The method of claim 2 wherein:

using the light-to-electricity conversion apparatus to convert light from the source of light into electricity comprises;

using the first light-to-electricity conversion apparatus to convert light from the source of light into first electricity and;

using the second light-to-electricity conversion apparatus to convert light from the source of light into second electricity; and

using the electricity to charge a rechargeable power supply comprises;

using the first electricity to charge a first rechargeable power supply; and

using the second electricity to charge a second rechargeable power supply that is different from the first rechargeable power supply.

4. The method of claim 1 wherein providing a source of light comprises, at least in part, providing a source of substantially non-visible light.

5. The method of claim 1 wherein the light-to-electricity conversion apparatus comprises an infrared light-to-electricity conversion apparatus.

6. The method of claim 1 wherein the optical conduit comprises, at least in part, an optical fiber.

7. The method of claim 6 wherein the optical conduit comprises, at least in part, a plurality of the optical fibers.

8. The method of claim 7 wherein the plurality of the optical fibers comprises a plurality of optical fibers that are each comprised of polymer material.

9. The method of claim 8 wherein the plurality of optical fibers comprises a plurality of optical fibers that are each about 0.1 to 5 millimeters in diameter.

10. The method of claim 9 wherein the plurality of optical fibers comprises from about 2 to about 100 optical fibers.

11. An aircraft power distribution system comprising:

a source of light;

a light-to-electricity conversion apparatus;

an optical conduit operably coupled between the source of light and the light-to-electricity conversion apparatus;

a rechargeable power supply operably coupled to the light-to-electricity conversion apparatus, such that the rechargeable power supply is electrically charged by electricity from the light-to-electricity conversion apparatus and wherein the rechargeable power supply is further operably coupled to at least one electrically powered aircraft component such that the electrically powered aircraft component receives operating power from the rechargeable power supply.

12. The aircraft power distribution system of claim 11 wherein:

the light-to-electricity conversion apparatus comprises a plurality of light-to-electricity conversion apparatuses;

the optical conduit comprises;

a first optical conduit that is operably coupled between the source of light and a first one of the plurality of light-to-electricity conversion apparatuses;

a second optical conduit that is operably coupled between the source of light and a second one of the plurality of light-to-electricity conversion apparatuses.

13. The aircraft power distribution system of claim 12 wherein the rechargeable power supply comprises a plurality of rechargeable power supplies, wherein each of the rechargeable power supplies is operably coupled to a different one of the optical conduits.

14. The aircraft power distribution system of claim 11 wherein the source of light comprises, at least in part, a source of substantially non-visible light.

15. The aircraft power distribution system of claim 14 wherein the light-to-electricity conversion apparatus comprises an infrared light-to-electricity conversion apparatus.

16. The aircraft power distribution system of claim 11 wherein the optical conduit comprises, at least in part, an optical fiber.

17. The aircraft power distribution system of claim 16 wherein the optical conduit comprises, at least in part, a plurality of the optical fibers.

18. The aircraft power distribution system of claim 17 wherein the plurality of the optical fibers comprises a plurality of optical fibers that are each comprised of a polymer material.

19. The aircraft power distribution system of claim 18 wherein the plurality of optical fibers comprises a plurality of optical fibers that are each about 0.1 to 5 millimeters in diameter.

20. The aircraft power distribution system of claim 19 wherein the plurality of optical fibers comprises from about 2 to about 100 optical fibers.

21. An aircraft comprising:

at least one electrically powered aircraft component;

a source of light;

a light-to-electricity conversion apparatus;

an optical conduit operably coupled between the source of light and the light-to-electricity conversion apparatus;

a rechargeable power supply operably coupled to the light-to-electricity conversion apparatus and to the electrically powered aircraft component, such that the rechargeable power supply is electrically charged by electricity from the light-to-electricity conversion apparatus and provides that electricity to the electrically powered aircraft component.

22. The aircraft of claim 21 wherein the source of light provides an insufficient quantity of energy to power, in real time, the electrically powered aircraft component.