Patent Number: 
Section: claims

1. An energy conversion device, comprising:a nuclear battery comprising:a radioactive substance, anda collector operable to receive particles emitted by the radioactive substance;a light source continuously electrically connected to the nuclear battery and operable to continuously receive electric energy from the nuclear battery at a first voltage and radiate electromagnetic energy; anda photocell operable to receive the radiated electromagnetic energy and convert the received electromagnetic energy into electric energy at a second voltage that is different from the first voltage;wherein (a) the radioactive substance emits charged particles that strike the collector resulting in the collector acquiring an electrical charge to generate the electrical energy at the first voltage, (b) the light source receives the electrical energy at the first voltage and radiates the electromagnetic energy, and (c) the photocell receives the radiated electromagnetic energy and converts the radiated electromagnetic energy into the electric energy at the second voltage. 2. The energy conversion device of claim 1, wherein the electric energy from the photocell has a lower voltage than the electric energy from the nuclear battery. 3. The energy conversion device of claim 1, wherein the light source is one or more light-emitting diodes (LEDs) connected in a series such that the forward voltage of the series of LEDs is approximate to the voltage of the electric energy from the nuclear battery. 4. The energy conversion device of claim 1, wherein the light source is chosen from the group consisting of: a laser diode, an electroluminescence device, and a transverse electric laser. 5. The energy conversion device of claim 1, wherein the radioactive substance emits alpha radiation or beta radiation. 6. The energy conversion device of claim 1, wherein:the collector comprises a first collector and a second collector, both the first collector and second collector being operable to receive particles emitted by the radioactive substance to acquire an electrical charge to generate the electric energy received by the light source; andthe radioactive substance is situated between the first collector and the second collector. 7. The energy conversion device of claim 1, further comprising a cylindrical body, wherein the radioactive substance and the collector are rolled to fit within the cylindrical body. 8. The energy conversion device of claim 1, wherein the nuclear battery provides the electric energy at a collector voltage on the order of the energy of the particles emitted. 9. The energy conversion device of claim 1, wherein the collector is configured to generate electric energy without the collector moving relative to the radioactive substance. 10. A nuclear-powered light source, comprising:a nuclear battery comprising:a radioactive substance, anda collector operable to receive particles emitted by the radioactive substance and to provide electric energy at a collector voltage on the order of the energy of the particles emitted;a light source continuously electrically connected to the nuclear battery and operable to continuously receive electric energy from the nuclear battery at the collector voltage and radiate electromagnetic energy;a cylindrical body;wherein the light source is disposed within the cylindrical body and the radioactive substance and the collector are rolled to fit within the cylindrical body, the collector being operable to receive particles emitted by the radioactive substance to acquire an electrical charge to generate at the collector voltage the electric energy received by the light source; andwherein (a) the radioactive substance emits charged particles that strike the collector resulting in the collector acquiring an electrical charge to generate the electrical energy at the first voltage, (b) the light source receives the electrical energy at the first voltage and radiates the electromagnetic energy, and (c) the photocell receives the radiated electromagnetic energy and converts the radiated electromagnetic energy into the electric energy at the second voltage. 11. The nuclear-powered light source of claim 10, further comprising a switch coupled to the cylindrical body and configured to turn on and/or turn off the light source. 12. The nuclear-powered light source of claim 10, wherein the light source is one or more light-emitting diodes (LEDs) connected in a series such that the forward voltage of the series of LEDs is approximate to the voltage of the electric energy from the nuclear battery. 13. The nuclear-powered light source of claim 10, wherein the light source is chosen from the group consisting of: a laser diode, an electroluminescence device, and a transverse electric laser. 14. The nuclear-powered light source of claim 10, wherein the radioactive substance emits alpha radiation or beta radiation. 15. A method of converting energy, comprising:receiving, at a collector, particles emitted by a radioactive substance;transmitting electric energy at a first voltage continuously from the collector to a light source continuously electrically connected to the collector;radiating, at the light source, electromagnetic energy by converting the electric energy into electromagnetic energy;receiving the radiated electromagnetic energy at a photocell; andconverting the received electromagnetic energy into electric energy at a second voltage that is different from the first voltage;wherein (a) the radioactive substance emits charged particles that strike the collector resulting in the collector acquiring an electrical charge to generate the electrical energy at the first voltage, (b) the light source receives the electrical energy at the first voltage and radiates the electromagnetic energy, and (c) the photocell receives the radiated electromagnetic energy and converts the radiated electromagnetic energy into the electric energy at the second voltage. 16. The method of claim 15, wherein the electric energy from the photocell has a lower voltage than the electric energy from the nuclear battery. 17. The method of claim 15, wherein the light source is one or more light-emitting diodes (LEDs) connected in a series such that the forward voltage of the series of LEDs is approximate to the voltage of the electric energy from the nuclear battery. 18. The method of claim 15, wherein the light source is chosen from the group consisting of: a laser diode, an electroluminescence device, and a transverse electric laser. 19. The method of claim 15, wherein the radioactive substance emits alpha radiation or beta radiation. 20. The method of claim 15, wherein:the collector comprises a first collector and a second collector, both the first collector and second collector being operable to receive particles emitted by the radioactive substance to acquire an electrical charge to generate the electric energy received by the light source; andthe radioactive substance is situated between the first collector and the second collector. 21. The method of claim 15, wherein the radioactive substance and the collector are rolled to fit within a cylindrical body.