Abstract:
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.
Abstract:
A fluorescent task lamp includes a housing assembled from first and second shells for supporting a lens body, first and second CFL bulb receptacles and first and second CFL bulbs; and a strain relief for an AC power cord having an integral hub portion with first and second pivot pins that pivot within first and second opposing pivot bushings formed respectively in each first and second shell in opposite sides of an aperture or cavity for receiving the hub portion therein. The pivoting strain relief permits orienting the power cord so that the lamp may be stood upright upon its base or hung from its hook.
Abstract:
A handheld fluorescent task lamp comprising a housing assembly having a housing and a tubular lens body enclosing compact fluorescent bulbs, an elongated spine configured for slidingly supporting the lens body, and a resilient bulkhead for cushioning the compact fluorescent bulbs in the lens body; an electronic ballast circuit within the housing comprising a power supply, a self-starting electronic driver circuit operable to start and run at least first and second CFL bulbs; a bulb accommodation circuit that enables operation of the electronic ballast circuit with either starter type or non-starter type and regardless whether one or both CFL bulbs are connected to the driver circuit; and an illumination assembly, wherein the CFL bulbs are oriented with respect to each other such that an enhanced forward emission field is provided.
Abstract:
A handheld fluorescent task lamp comprising a housing assembly having a housing and a tubular lens body enclosing compact fluorescent bulbs, an elongated spine configured for slidingly supporting the lens body, and a resilient bulkhead for cushioning the compact fluorescent bulbs in the lens body; an electronic ballast circuit within the housing comprising a power supply, a self-starting electronic driver circuit operable to start and run at least first and second CFL bulbs; a bulb accommodation circuit that enables operation of the electronic ballast circuit with either starter type or non-starter type and regardless whether one or both CFL bulbs are connected to the driver circuit; and an illumination assembly, wherein the CFL bulbs are oriented with respect to each other such that an enhanced forward emission field is provided.
Abstract:
A tool for removing a broken light bulb base from a socket includes a body member for supporting a tubular resiliently deformable bulb base gripping head member operable to engage a broken bulb base including the glass bulb base portion, if remaining intact with the bulb base, whereby axial and rotational forces exerted by the tool body member effects substantial elastic deformation of the head member into frictional gripping engagement with the base to permit rotation of the base and removal from a socket. The body member includes a rigid tubular support part for engaging one end of the resilient head member but the rigid support part does not engage or enter the bulb base. The tool may be provided with a second resilient head member and supporting body member nestable in the first mentioned body member and usable for smaller diameter broken bulb bases. An adapter part is provided for mounting the tool on the end of an elongated pole for reaching otherwise inaccessible bulbs.