Title:
HAND POWERED ELECTRIC FLASHLIGHT USING LIGHT EMITTING DIODES
Document Type and Number:
WIPO Patent Application WO2002042682
Kind Code:
A8
Abstract:
A hand-powered flashlight with light emitting diodes (LEDs) and an extremely efficient energy storage device is presented. This allows the flashlight to continue emitting light after mechanical energy input is stopped. A switch is used to provide a user the option to only charge the energy storage device or charge the energy storage device and the LEDs. A DC-DC converter is used that allows more of the energy stored in the energy storage device to be used to provide power to the LEDs.
Inventors:
SENNEBOGEN NEIL (US)
GATES RUSSELL (US)
OLIVER WILLIAM (US)
GATES RUSSELL (US)
OLIVER WILLIAM (US)
Application Number:
PCT/US2001/043447
Publication Date:
September 26, 2002
Filing Date:
November 21, 2001
Export Citation:
Assignee:
ELECTRO CAM CORP (US)
SENNEBOGEN NEIL (US)
GATES RUSSELL (US)
OLIVER WILLIAM (US)
SENNEBOGEN NEIL (US)
GATES RUSSELL (US)
OLIVER WILLIAM (US)
International Classes:
F21L13/08; H05B44/00; (IPC1-7): F21L4/00; B62J7/08; H05B37/00
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