Watertight, low power L.E.D. flashlight
First Claim
Patent Images
1. A flashlight comprising, a. housing having a center cavity;
- b. a transparent lens attached to said housing;
c. printed circuit board disposed inside said housing, said printed circuit board including a power circuit and a voltage multiplier circuit that multiplies the voltage delivered by a battery connected to said power circuit;
d. at least one L.E.D connected to said voltage multiplier circuit;
e. an ON-OFF switch connected to said power circuit on said printed circuit board; and
, f. a battery connected to said power circuit and used to energize said L.E.D.
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Abstract
A watertight, low power flashlight is disclosed that uses a voltage tripler and regulator that enables the use of a single AA or lithium battery. The voltage tripler is a “step-up power component” that raises the battery voltage from 1.5 to approximately 5 volts required to sufficiently energize the L.E.D.s. The flashlight also includes a lightweight, compact housing with an optional dimmer switch and a side-mounted “soft” on/off switch.
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Citations
16 Claims
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1. A flashlight comprising,
a. housing having a center cavity; -
b. a transparent lens attached to said housing;
c. printed circuit board disposed inside said housing, said printed circuit board including a power circuit and a voltage multiplier circuit that multiplies the voltage delivered by a battery connected to said power circuit;
d. at least one L.E.D connected to said voltage multiplier circuit;
e. an ON-OFF switch connected to said power circuit on said printed circuit board; and
,f. a battery connected to said power circuit and used to energize said L.E.D. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A flashlight comprising,
a. housing having a center cavity; -
b. a transparent lens attached to said housing;
c. printed circuit board disposed inside said housing, said printed circuit board including a power circuit and a voltage multiplier circuit that triples the voltage delivered by a battery connected to said power circuit;
d. two L.E.D.s connected to said voltage multiplier circuit;
e. an ON-OFF switch connected to said power circuit on said printed circuit board; and
,f. a battery connected to said power circuit and used to energize said L.E.D, said battery provides 1.5 volts. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An L.E.D. flashlight, comprising:
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a. a housing;
b. a battery;
c. a power circuit that includes at least one battery and an on/off switch;
d. a L.E.D. light circuit having at least one L.E.D. connected to said power circuit, and, e. a voltage multiplying circuit containing a synchronous boost converter connected between said power circuit and said L.E.D. light circuit.
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Specification