Patent ID: 6880951
Filing Date: 2005-04-19
Classification: F21L,F21V,F21Y

Abstract:
1. A flashlight comprising: a conductive barrel for receiving at least one battery therein; a conductive tail cap detachably coupled to a rear end of the conductive barrel and electrically connecting a minus electrode of the battery accommodated in the conductive barrel to the conductive barrel through a spring; and a head section detachably coupled to a front end of the conductive barrel, wherein the head section includes a conductive head cap detachably coupled to the front end of the conductive barrel and having a transparent window for radiating a light on a front surface thereof; an insulation case having a front end and a slot, the front end being inserted into the conductive head cap from a rear end of the conductive head cap towards the transparent window, and the slot being formed at an outer wall thereof and extending lengthwise the insulation case; a lamp module assembled into an inner rear end of the insulation case and having an insulating substrate, the insulating substrate including an LED at a front center portion thereof, an anode electrode terminal and a cathode electrode terminal of the LED being arranged around the LED, and a metal layer being connected to a positive electrode of the battery and being coated one rear surface thereof for discharging heat; a U-shaped first connecting conductor inserted to a peripheral portion of the insulating substrate in order to electrically connect the anode electrode to the metal layer; a second connecting conductor having a first end and a second end opposite to the first end, the first end being installed in the slot of the insulation case so as to electrically come into contact with an inner portion of the conductive head cap, and the second end extending into the insulation case to be connected with the cathode electrode terminal of the lamp module; and a collimator lens assembled into an inner portion of the insulation case between the transparent window and the insulating substrate in order to forwardly refract light radiated from the LED.