Abstract: Improved rechargeable lighting devices, including a battery pack having a positive electrode on its rear end, and negative electrodes on both ends. The circuitry in the lighting device efficiently transfers between operating and charging modes.

Abstract: 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.

Abstract: A flashlight having a locking mechanism for securing a head skirt to a head assembly is disclosed. A circuit for temporarily remember the mode of operation of the flashlight is also disclosed.

Abstract: Improved lighting devices, such as non-rechargeable and rechargeable flashlights, having simplified designs with fewer component parts are described. A focusing feature is described where the light source is held stationary and the reflector is moved through the engagement of threads and/or teeth arrangement. An improved reflector that avoids regions of increased thickness to reduce or avoid distortion caused by sink is also described.

Abstract: A charger cradle for recharging a rechargeable lighting device is described. The cradle may include two prongs that flex outwards to allow a lighting device to be inserted into the cradle. After the lighting device is fully inserted, the prongs resume a normal position to exert an inward force on the lighting device to secure it in place. The cradle may also include two moveable cradle arms, in lieu of two prongs, to allow a spring mechanism within the device to motivate the moveable cradle arms to grasp a lighting device when the lighting device is inserted into the rechargeable lighting device.

Abstract: 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.

Abstract: A flashlight having a main power circuit and a barrel is disclosed. The main power circuit includes a light source and a portable power source for supporting the light source. The barrel is not within the main power circuit. The flashlight also has a ball for holding the light source. The light source is fit and in contact with the inner surface of the ball. The outer circumference of the ball has an array of fin-like protrusions for effectively dissipating heat from the light source.

Abstract: A flashlight having a locking mechanism for securing a head skirt to a head assembly is disclosed. A circuit for temporarily remember the mode of operation of the flashlight is also disclosed.

Abstract: A combination for use in aligning a substantial point source of light with respect to an axis of a reflector is provided. The combination includes a reflector, a lamp bulb having a substantial point source of light, and a movable lamp bulb holder. The movable holder may be moved using an actuating member. The reflector has a first open end for emitting a light beam, a second end and an axis extending between the first and second reflector ends. The lamp bulb is secured to the movable holder and is disposed about the second end of the reflector. The actuating member is operatively coupled to the movable holder at an actuation interface for moving the substantial point source of light relative to the axis of the reflector and aligning the substantial point source of light with the reflector axis and the focal point of the reflector. Flashlights employing the combination are provided.

Abstract: A flashlight having a locking mechanism for securing a head skirt to a head assembly is disclosed. A circuit for temporarily remember the mode of operation of the flashlight is also disclosed.

Abstract: An improved flashlight includes a barrel, a light source and a variable length conductor. The barrel contains a plurality of batteries which may be arranged end-to-end. The light source is held in a holder. The variable length conductor is interposed between the plurality of batteries and the light source. The variable length conductor is configured to selectively electrically couple or de-couple the light source and the batteries. The holder of the light source may further be configured to move the light source substantially laterally relative to an axis of the reflector.

Abstract: An improved flashlight includes a barrel, a light source and a variable length conductor. The barrel contains a plurality of batteries which may be arranged end-to-end. The light source is held in a holder. The variable length conductor is interposed between the plurality of batteries and the light source. The variable length conductor is configured to selectively electrically couple or de-couple the light source and the batteries. The holder of the light source may further be configured to move the light source substantially laterally relative to an axis of the reflector.

Abstract: A portable lighting device and method of operating the portable lighting device are disclosed. The portable lighting device is configured to operate using a portable source of power having a plurality of modes of operation. The portable lighting device comprises a main power circuit including a light source, an inertial sensor having a plurality of signal outputs, and a controller electrically connected to the outputs of the inertial sensor and the main power circuit in a manner to permit the controller to enter into a new mode of operation based on signals received from the outputs of the inertial sensor. One method of operating the portable lighting device is by positioning the portable lighting device to one of a plurality of predetermined positions to enter into one of a plurality of modes of operation. Each of the plurality of predetermined positions is associated with one of the plurality of modes of operation.

Abstract: A portable lighting device and method of operating the portable lighting device are disclosed. The portable lighting device is configured to operate using a portable source of power having a plurality of modes of operation. The portable lighting device comprises a main power circuit including a light source, an inertial sensor having a plurality of signal outputs, and a controller electrically connected to the outputs of the inertial sensor and the main power circuit in a manner to permit the controller to enter into a new mode of operation based on signals received from the outputs of the inertial sensor. One method of operating the portable lighting device is by positioning the portable lighting device to one of a plurality of predetermined positions to enter into one of a plurality of modes of operation. Each of the plurality of predetermined positions is associated with one of the plurality of modes of operation.

Abstract: A portable lighting device having a plurality of modes of operation and method of operating the portable lighting device are disclosed. One method of operating the portable lighting device is by rotating the portable lighting device along a principal axis of projection of the light source to enter into a new mode of operation. Normal, dim, motion sensitive, variable brightness, blink, right and left hand, lock out, SOS, night light, strobe, compass and signal modes are disclosed, and the modes may be adjusted. A rechargeable battery pack is disclosed that includes a housing, a rechargeable battery, and an accelerometer. A battery cassette is disclosed that provides a negative electrode at each end of the battery cassette, and a central connector that provides a positive electrode at both ends of the battery cassette.

Abstract: A flashlight having a main power circuit and a barrel is disclosed. The main power circuit includes a light source and a portable power source for supporting the light source. The barrel is not within the main power circuit. The flashlight also has a ball for holding the light source. The light source is fit and in contact with the inner surface of the ball. The outer circumference of the ball has an array of fin-like protrusions for effectively dissipating heat from the light source.