Patent ID: 6239555
Filing Date: 2001-05-29
Classification: F21L,F21Y,H05B,Y02B

Abstract:
A flashlight comprising a source of power, a diode capable of emitting white light when energized, and electrical circuitry connected with said source of power and said diode, said electrical circuitry including a field effect transistor which is operable between a plurality of conditions, said field effect transistor being operable between a first condition in which said electrical circuitry is effective to energize said diode with a first electrical potential to cause said diode to emit white light of a first intensity, a second condition in which said electrical circuitry is effective to energize said diode with a second electrical potential which is less than said first electrical potential to cause said diode to emit white light of a second intensity which is less than said first intensity, and a third condition in which said electrical circuitry is ineffective to energize said diode and said diode is ineffective to emit light, said diode being energized to emit white light of an intensity sufficient to illuminate objects spaced more than six feet from said flashlight when said field effect transistor is in the first condition, said diode being energized to emit white light of an intensity which is insufficient to illuminate objects spaced more than six feet from said flashlight when said field effect transistor is in the second condition.