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US 5,782,552 AGranted
Light assembly
OwnerDavid R. Green, L. Brock Russellinventors
Life of this patent
Estimating the term…
Abstract
A light assembly comprising a light-emitting diode (LED), a rechargeable capacitor to energize the diode, and a solar cell to recharge the capacitor. Preferably, there is circuitry to enable charging of the capacitors and circuitry to enable use of the solar cell as a photosensor to selectively energize the LED when the ambient light is below a pre-determined level, and to stop energizing the LED when the ambient light is above a pre-determined level.
Claims8
A light assembly comprising:
- an encapsulated light emitting diode;
- a rechargeable capacitor in electrical contact with said LED to energize said LED;
- a solar cell in electrical contact with said capacitor, to recharge said capacitor;
- circuitry to enable recharging of the capacitor and to enable the LED to flash for several hours after solar illumination has ceased;
- and
- potting material that completely or substantially encapsulates the light assembly.
3 more elements
A light assembly comprising:
- an encapsulated light emitting diode (LED);
- a rechargeable capacitor in electrical contact with said LED to energize said LED;
- a solar cell in electrical contact with said capacitor, to recharge said capacitor;
- circuitry to enable use of the solar cell as a photosensor to selectively energize the LED when the ambient light is below a pre-determined level, to stop energizing the LED when the ambient light is above a pre-determined level;
- and
- potting material that completely or substantially encapsulates the light assembly.
3 more elements
A light assembly comprising:
- a light emitting diode (LED);
- a rechargeable capacitor in electrical contact with said LED to energize said LED;
- a solar cell in electrical contact with said capacitor, to recharge said capacitor;
- circuitry to enable use of the solar cell as a photosensor to selectively energize the LED when the ambient light is below a pre-determined and to stop energizing the LED when the ambient light is above a pre-determined level, and to enable charging of the capacitor by the solar cell when the ambient light is above a pre-determined level so that the LED flashes for several hours after solar illumination has ceased;
- the assembly being potted in a potting compound;
- said LED protruding from the potting compound.
3 more elements
Dependencies are inferred from the claim text.