272results about "Without self-contained power source" patented technology

The present invention provides a linear lighting apparatus with improved heat dissipation and a method for improving the heat dissipation in a linear lighting apparatus. The apparatus includes a plurality of light emitting diodes, a plurality of primary optical assemblies and an apparatus housing. The primary optical assemblies are each in contact with one of the plurality of light emitting diodes. The primary optical assemblies and a second optical assembly are configured to refract the light so as to create a linear light source emanating from the apparatus. The apparatus housing is configured to dissipate thermal energy from the light emitting diodes.

Work light has LEDs that require heatsink. Desired radiation pattern achieved by using optical components designed to produce beam or LEDs may have beams in different directions. Radiation pattern of LEDs may be changed by refractive-reflective optics or by convex lenses. Convex lenses may be hemispheres, other planoconvex shapes, concavo-convex shapes, or other shapes. Curved surfaces on any lenses may be spherical or aspheric. Ballast to operate the LEDs from line voltage AC or low voltage DC. Work light may contain batteries. The work light may be mounted on a stand. May have accessory mount. May have charging station. May have a paging transmitter to activate a paging receiver in work light. May have openings for heat transfer from heatsink to ambient air external to light.

A work light for work or task areas which uses light-emitting diodes (LEDs) as the source of light. LED clusters are mounted on a circuit board which is located in a housing. The LED work lights may be powered by conventional 120 or 240-volt electrical outlets, a DC generator, a battery, a battery pack, or a car adapter.

Work light has LEDs that may require heatsink. Desired radiation pattern achieved by using optical components designed to produce beam or LEDs may have beams in different directions. Radiation pattern of LEDs may be changed by refractive-reflective optics or by convex lenses. Convex lenses may be hemispheres, other planoconvex shapes, concavo-convex shapes, or other shapes. Curved surfaces on any lenses may be spherical or aspheric. Ballast to operate the LEDs from line voltage AC or low voltage DC. Work light may contain batteries. The work light may be mounted on a stand. May have accessory mount. May have charging station. May have a paging transmitter to activate a paging receiver in work light. May have openings for heat transfer from heatsink to ambient air external to light.

A work light for work or task areas which uses light-emitting diodes (LEDs) as the source of light. LED clusters are mounted on a circuit board which is located in a housing. The LED work lights may be powered by conventional 120 or 240-volt electrical outlets, a DC generator, a battery, a battery pack, or a car adapter.

A surgical headlamp containing dual lamp housings, each containing one or more LED light sources is featured. Both lamp housings may be adjusted so that light beams emitted by each may be selectively converged at a spot a predetermined distance in front of the lamp housings. Each lamp housing typically contains, in addition to the LED(s), one or more reflectors to gather and direct light generated by the LED(s) forward to an illuminated work area. Batteries, preferably rechargeable, mounted either on the headband supporting the headlamp on a user's head or external to the headband, are used to power the LED(s). Switch and / or dimming circuitry may be provided. Hot swapping, a capability whereby batteries may be interchanged during a lengthy surgical procedure, is also provided.

Wearable light device for providing additional light for activities in low light includes a wearable mount (20) including a light system (30) and power source (40). Light system (30) includes one or more arrays of light sources such as light-emitting diodes (33). Photo sensor (34) detects ambient light or emitted light returned from a reflective surface and causes control circuit (45) to dim light emission.

A utility lamp (1) comprises a curved reflector (2) having a spherically curved surface. An array of LEDs (3) is arranged in an electrical circuit on a thin substrate mounted via thermally conductive epoxy on a thermally-conductive base (4), which in turn forms an integral part of the reflector (2). The LEDs are mounted for efficient heat transfer by conduction to the reflector (2). The reflector (2) thus operates as both a light reflector and as a radiative heat sink. The heat radiating properties of the reflector are enhanced by integral fins (7) extending in the radial direction around the periphery of the reflector (2). The reflector (2) is of integral aluminium construction.

A surgical head gear apparatus or helmet includes a lighting system that utilizes circuit board mounted LED clusters supported on the surgical helmet. The LED clusters are part of a light array mounted to the forward portion of the helmet. In one embodiment, the light array is self-contained with its own power supply. In another embodiment, the light array is electrically connected to an external power supply and controller, such as en existing controller associated with the ventilation system of the helmet. In accordance with the invention, the only remote link for the LED clusters and circuit boards is to a control switch and / or power supply.

Wearable light device for providing additional light for activities in low light includes a wearable mount (20) including a light system (30) and power source (40). Light system (30) includes one or more arrays of light sources such as light-emitting diodes (33). Photo sensor (34) detects ambient light or emitted light returned from a reflective surface and causes control circuit (45) to dim light emission.

An improved worklight case for carrying and storing a worklight such as a quartz halogen worklight having a protective grill protruding from the worklight face. The worklight may be stored in the case without disassembly of the worklight or removal of the protective grills. A tripod may also be included in the case. The case has a bottom portion including one or more bays, each of which is formed for receiving an individual worklight head with the protective grill in position on the worklight head. The bays are disposed in the bottom portion so that each worklight head rests in its own bay when the worklight is in position in the bottom portion. The various surfaces of the bottom portion are formed to allow space for the worklight base so that the worklight heads need not be disassembled from the base, but rather the worklight may be positioned in the bottom portion as a unit with each head in its own bay. Adequate space is left over for storing the tripod as well.

A modular light source system forms a plurality of distinct light sources with a common tubular metal housing, an LED based lighting element for each light source, and a pair of end caps on opposed ends of the metal housing for each light source. Each distinct lighting source is comprised of one of the LED based lighting elements and a given pair of the end caps, whereby distinct light sources can be formed through replacement of the LED based lighting elements and the end caps.

A box light includes a housing having first and second clamshell-halves. Each clamshell-half has a lamp face and an opposite exterior surface. At least one lamp and its corresponding protective enclosure is mounted in each of the lamp faces. Each of the lamp faces has at least one lamp-receiving aperture. The clamshell-halves are rotatably mounted to one another by a first hinge for rotation relative to another about the first hinge between open and closed positions. The open position includes selectively positionable open positions exposing the lamp faces so that an included angle between the lamp faces may be opened to two hundred seventy degrees whereby the lamps on each lamp face shines outwardly and oppositely of the housing when electrically powered. In the closed position the lamp faces are in closely adjacent opposed facing relation and the exterior surfaces are oppositely disposed. Also, when in the closed position, the at least one lamp and its protective enclosure on each of the first and second clamshell-halves is aligned and mated with the lamp-receiving aperture on the opposed facing lamp faces so as to insert at least the protective enclosure of each of the at least one lamps into mating engagement with the corresponding lamp-receiving apertures in the opposed facing lamp faces.

A work light for work or task areas which uses light-emitting diodes (LEDs) as the source of light. LED clusters are mounted on a circuit board which is located in a housing. The LED work lights may be powered by 3.6 volt, 4.8 volt, or 6.0 volt sources.

A multi-adjustable clamp work light comprising an elongated hollow grip handle, a light housing pivotally mounted to one end of the grip handle, an adjustable clamp member, and a two-way adjustable joint disposed between the clamp member and the grip handle. An optional hook may also be provided.

A utility lamp (1) comprises a curved reflector (2) having a spherically curved surface. An array of LEDs (3) is arranged in an electrical circuit on a thin substrate mounted via thermally conductive epoxy on a thermally-conductive base (4), which in turn forms an integral part of the reflector (2). The LEDs are mounted for efficient heat transfer by conduction to the reflector (2). The reflector (2) thus operates as both a light reflector and as a radiative heat sink. The heat radiating properties of the reflector are enhanced by integral fins (7) extending in the radial direction around the periphery of the reflector (2). The reflector (2) is of integral aluminium construction.

A headlamp lighting device is provided that allows for the adjustment of the size of the light beam and forward heat dissipation. The lighting device includes a housing, a light source provided on the housing for generating a light beam, and an optical focus lens disposed in the path of the light beam for focusing the light beam. The lighting device also includes a lens ring supporting the optical focus lens to move the focus lens relative to the light source to adjust size of the light beam. The lens ring also serves as an outer heat sink in thermal conductive relationship with an inner heat sink.

A battery powered portable electric light source has multiple sets of spare batteries contained in its battery compartment, whereby mixups between exhausted and fresh batteries are effectively avoided. A flashlight having a light output stronger than the mentioned electric light source is provided for use of batteries from the battery compartment of the mentioned portable container, and batteries are exchanged between that portable container and that flashlight. Apparatus for providing electric light have an electric light source requiring for energization a pair of batteries in series and a portable container for several pairs of these batteries connected each in series at a bottom of that container. Each of these several pairs of batteries includes a first battery having a first positive terminal and an opposite first negative terminal, and a second battery having a second positive terminal connected to that first negative terminal and an opposite second negative terminal. First positive terminals of first batteries of the several pairs of batteries and second negative terminals of second batteries of the several pairs of batteries are in substantially the same plane for selective application of the electric light source thereto for energization therefrom. A socket for the electric light source includes terminals corresponding to adjacent terminals of any one of the several pairs of batteries in that container. Unspent batteries in film packs may be used to energize light sources.

A spotlight system is adaptable for use with preferably one or more power sources so as to provide lighting where needed. The spotlight system preferably includes a spotlight assembly comprising a lamp housing which includes at least one bulb, a switch, and an enclosure. The spotlight system may be operated utilizing DC power with or without a rechargeable battery. The rechargeable battery may be recharged utilizing DC power or AC power while still connected to the lamp housing. When the lamp housing is operated without a battery, then the lamp housing is extremely light for hand held operation with a preferably high power beam.

An LED lighting array is disclosed wherein a plurality of light emitting devices disposed in at least first and second columns are mounted on a planar mounting surface to form an emission plane. The emission axes of all the LEDs in a first column are parallel with each other and lie in a first plane. The emission axes of the LEDs in an adjacent, second column are also parallel, but a second plane containing the emission axes of the second column is disposed at a predetermined, non-zero angle with respect to the first plane. The non-zero angle is a function of the LED beam width and the distance to a lighting target. This configuration of the LEDs provides an optimum balance at a predetermined target distance between the size of the area illuminated and the brightness of the illumination of the target. In one aspect of the invention the LED lighting array includes at least first, second and third columns of LEDs. In another aspect of the invention an LED task light includes a transparent tube and an LED lighting array disposed within the tube. An electrical drive circuit associated with the mounting substrate within the tube provides pulsed direct current for driving the LED's.

A light emitting diode (LED) work light and associated method of controlling the LED work light. The LED work light includes a power source, a casing including a handle section, at least one LED mounted to illuminate light from the casing, at least one lens forward of the LEDs to focus light from the LEDs, a control switch designated to at least turn on and turn off the LEDs, and a controller. The controller may be configured to, in response to activation of the control switch, provide control of the power source to the LEDs to transition from a first illumination state to a second illumination state of the illumination of the LEDs, the transition being illumination defined by a specified function over time defined to slow a transition time of the transition.

A remote control operation of an illuminated unit attached to a headset consisting of a headband and at least one optical device providing illumination at a known distance from said optical device attached to said headband is disclosed. The remote control unit incorporates a sensing unit that causes power to be switched on and off by the detection of motion in front of the sensing unit. In addition, the illumination may be increased or decreased based on a signal strength of a detected remote sensing signal.

Wearable light device for providing additional light for activities in low light includes a wearable mount (20) including a light system (30) and power source (40). Light system (30) includes one or more arrays of light sources such as light-emitting diodes (33). Photo sensor (34) detects ambient light or emitted light returned from a reflective surface and causes control circuit (45) to dim light emission.

The present invention provides an apparatus having a function of illumination of electric light anytime, which is connected via USB, 1394 or PS2 transmission circuit. The structure thereof uses USB or the aforementioned attachment ports to connect and is charged by storage batteries for illumination. When the illumination apparatus is embodied, USB, 1394 or PS2 attachment ports (HUB) or the card reading unit can be set up on the apparatus to become a multifunctional computer peripheral apparatus.

The assembly includes a strap adaptable to a variety of positions. Such a strap is placed directly about the user's head. A light-emitting source spaced from the strap includes a power supply source electrically coupled to the light-emitting assembly. Such a power supply source is rechargeable. A voice-activated mechanism for biasing the light-emitting source is defined from the strap so that the light-emitting assembly can be adapted along an x-axis, y-axis and z-axis. A motor assembly is directly and operably conjoined to the voice-activated mechanism and the light-emitting assembly. The voice-activated mechanism cooperates with the light-emitting source and the motor assembly during operating conditions. Such a voice operating mechanism is power-operated. The voice-activated mechanism is conveniently responsive to a user's voice commands in such a manner that the user can selectively operate the motor assembly and the light-emitting source from a remote location.

An illuminating headlamp consisting of a headband and at least one optical device providing illumination at a known distance from said optical device attached to said headband. Each optical device consists of a housing having an open first end and an open second end. There is a light emitting device attached to a mounting which is attached to the second end causing said light emitting device to be orientated at a known angle to an axis of said housing. At least one optically transparent lens is incorporated into said first end, and a means for adjusting said optically transparent lens in order to cause a focal point of the lens to be positioned behind said light emitting device, wherein a zone of substantially uniform illumination is projected at said known distance.