US Patent 7147343 Flashlight
Patent 7147343 was granted and assigned to Chapman/Leonard Studio Equipment, Inc. on December, 2006 by the United States Patent and Trademark Office.
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A flashlight has a lens moveable relative to an LED. The beam of light provided by the LED can be focused and provides a uniform light pattern across the range of focus. The lens is supported on a front housing section and the LED is supported on a back housing section threaded onto the front housing section. Twisting the front housing section closes a switch providing power to the LED, to turn the flashlight on. Twisting the front housing section also adjusts the focus of the beam. A timer circuit within the flashlight turns the flashlight off after a selected time interval, to preserve battery life.
US Patent 07147343 Flashlight US Patent 7147343 Flashlight
US Patent 07147343 Flashlight
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