Flashlight using a light emitting diode as a lamp
First Claim
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.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is an LED flashlight using a high-luminance LED as a lamp. The LED flashlight has a conductive barrel, a conductive tail cap, and a head section. The head section includes a conductive head cap, an insulation case, a lamp module, first and second connecting conductors and a collimator lens. The conductive head cap is detachably coupled to a front end of the conductive barrel and has a transparent window. A front end of the insulation case is inserted into the head cap towards the transparent window. A slot is formed at an outer wall of the insulation case. The lamp module is assembled into an inner rear end of the insulation case and has an insulating substrate including an LED. An anode and a cathode electrode of the LED are formed at a peripheral portion of the lamp module. The lamp module has an insulating substrate formed at a rear surface thereof with a metal layer connected to a positive electrode of a battery. The first connecting connector has a U-shape and is inserted to peripheral portion of the insulating substrate. A first end of the second connecting connector is installed in the slot of the insulation case and a second end of the second connecting connector extends into the insulating case. The collimator lens assembled into the insulation case between the transparent window and the insulation substrate.
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Citations
19 Claims
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1. A flashlight comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification