Mag Instrument, Inc.

Other

Mag Intstrument, Inc.

Stacey H West

Anthony Maglica

Robert Peter Radloff

Benny M Osorio

Scott M Nathanson

John K O'Farrell

A flashlight or portable light source has a battery power source, a light source, a circuit powered by the battery power source which causes the light source to emit light in an on state, a switch which causes the circuit to alternate between the on state and an off state in which the light source does not emit light when the switch is actuated by a user, a controller for causing light emitted from the light source to emit at two or more modes other than the off state, and an automatic dimmer residing within the flashlight which causes light emitted from the light source to dim without any activation of the switch after a first preselected amount of time.

Portable lighting devices

A portable rechargeable lighting device uses software in a microcontroller to turn on a charger protection circuit when a charging circuit is activated, to monitor at least one electrical characteristic relative to a rechargeable battery, to control at least one charging parameter of the charging circuit, and to alert a user of a low battery condition before light emitted from the device terminates.

Rechargeable lighting devices

A method for increasing battery life in a lighting device powered by a battery source in which an electronic circuit is caused to provide a declining power supply to a light emitting diode ('LED') as a power profile of the battery source declines.

A lighting device with improved optical performance and efficiency is provided. The lighting device includes a source of energy, a light source, a reflector and a holder. The reflector has a first open end, a second end, and a parabolic profile extending between the first open end and second end. The focus of the parabolic profile is located outside of the profile. The reflector may also be movable relative to the light source. The lighting device may include a circuit that delivers a pulsed or thermally compensated pulsed current to the light source. The light device may also include a heat sink housing.

LED flashlight

A flashlight or portable light source has a battery power source, a light source, a circuit powered by the battery power source which causes the light source to emit light in an on state, a switch which causes the circuit to alternate between the on state and an off state in which the light source does not emit light when the switch is actuated by a user, a controller for causing light emitted from the light source to emit at two or more modes other than the off state, and an automatic dimmer residing within the flashlight which causes light emitted from the light source to dime without any activation of the switch after a first preselected amount of time.

A lighting device with a light source powered by batteries connected in series utilizes a current-limited load switch which regulates current delivered to the light source from the batteries through use of a controller electrically coupled in series with a mechanical power switch so that when the mechanical power switch is opened, the controller is not powered by the batteries, the controller including an output for providing a control signal for controlling the opening and closing of the current-limited load switch, and current delivered to the light source by the current-limited load switch is set by a resistor connected to an ISET pin of the current-limited load switch.

Multi-mode portable lighting device

A method for increasing battery life in a lighting device powered by a battery source in which an electronic switch is caused to provide a declining power supply to a light emitting diode ('LED') as a power profile of the battery source declines.

A charging process of a rechargeable lighting device is controlled by a software algorithm and a microcontroller configured within the rechargeable lighting device which has first and the second charging contacts located on its exterior and the charging circuit is turned on when a cradle detection circuit detects that at least one of the charging contacts engages an electrical contact when the rechargeable lighting device is inserted into a charging cradle. The charging process begins with a charge-current which is constant and a battery charge-voltage which rises up to a nominal battery charge-voltage. The rechargeable lighting device recovers to a preselected condition through use of a power interruption avoidance algorithm configured within the microcontroller when there is a loss of power to the microcontroller of less than a preselected amount of time.

A method for controlling a portable lighting device. The device has a switched-mode power supply, a light source, a high frequency switch, a controller controlling the operation of the light source and a user interface for inputting commands to the controller. A DC power source has a negative pole that is connected by only one single electric contact with the lighting device tail. The method for controlling a portable lighting device includes connecting a DC power source, an inductor, a light source, a high frequency switch and a resistor in series, measuring a voltage across the resistor, and controlling the high frequency switch dependent on the voltage measured across the resistor.

Portable lighting device

A portable lighting device that provides different user interfaces that may be selected by the user. Each user interface may provide one or more operational modes, such as on mode, power save mode, strobe mode or momentary mode. After a user interface is selected, the user may select on of the operational modes. The portable lighting device may be a flashlight.

Portable lighting device with reconfigurable user interface

A multi-mode flashlight includes a housing with a source of power, a light source located at a forward end of the housing, and a tail cap located at the tail end of the housing, the tail cap including a switch and at least two icons, each of which is associated with a mode of operation of the flashlight, wherein the mode of operation is selected by orienting the housing so that the icon associated with the desired mode of operation is positioned in a predetermined manner and the switch is depressed to turn the flashlight on and the switch is depressed for at least a predetermined amount of time.

A rechargeable lighting device has a rechargeable power source with a positive electrode located at its rear end, a main power circuit that powers a light source and includes the positive electrode, a charging circuit configured to be enabled when the lighting device engages a charging device, and at least one charging contact located on the exterior of the lighting device at or near its tail end. A microcontroller and switch are located at the rear end and the microcontroller wakes up to either turn on the main power circuit and isolate the charging contract from a charging ground path or turn on the charging circuit in which case the charging contact acts as part of the charging ground path.

A portable lighting device, such as a flashlight, with a mechanical power switch and multiple operating modes is provided. The mechanical power switch is disposed in series with the controller for the lighting device and acts as the user interface to the controller to change modes of operation. Because the mechanical power switch is in series with the controller, the portable lighting device does not consume battery power when the mechanical switch is open. A state machine coupled to the controller is polled by the controller each time it is powered up to determine the operational mode of the lighting device.

A flashlight uses a reverse battery protection circuit to prevent current from flowing in a power control circuit when at least one battery is held in a reversed orientation, rather than a correct orientation, in a battery compartment of the flashlight.

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Temecula, CA, United States of America

Stacey H West