Abstract: An AC driven LED light string assembly is provided possessing reduced harmonic distortion and improved electrical efficiency when one or more series blocks of LED lamps is employed. In one embodiment, there is provided an LED light string employing a capacitor coupled in parallel across the light string AC input, or end connector terminals. According to another embodiment, LED light strings are to be manufactured with a substantially equal number of light strings produced with all LEDs in forward bias (anode first) and reverse bias (cathode first). This allows true randomness when large numbers of single series block LED light strings are connected in an end-to-end manner. It is possible to apply this concept to single LED lamps having two chips where one chip is powered in reverse bias to the second chip; thereby providing self-canceling harmonics within the single LED lamp.

Abstract: A back light unit provides light to a light emission surface of a liquid crystal display device. The back light includes a plurality of lamps, a plurality of inverters, a plurality of first power lines, and a plurality of second power lines. Each lamp has first and second ends and is disposed substantially only in one of an integer (n) number regions of the light emission surface wherein the regions divide a length of the light emission surface into n regions. Each one of the first power lines are respectively connected to the first ends of the lamps and first connectors of the inverters, and each one of the second power lines are respectively connected to the second ends of the lamps and second connectors of the inverters.

Abstract: A flashing lighting device, most specifically designed for mounting inside and outside an automobile, is comprised of a housing and, within in, a circuit for storing at least one flashing sequence signal. At least one first array of light-emitting elements is close to this housing and generates a flashing pattern responsive to the flashing sequence signal, and at least one second array of light-emitting elements are arranged more remotely from the housing than the at least one first array and is also responsive to said flashing signal. In this way the circuit actuates said the two arrays or series of arrays in a way substantially contemporaneous with the same flashing pattern so that observation of any one array conveys information regarding the flashing pattern displayed in the other array.

Abstract: An improved light source for use in an opacity monitor (transmissometer) that reduces the variation in light intensity across a projected light beam to enable a more accurate and stable method for measuring the opacity of gases in a stack/duct, especially at low values (e.g., <10%) of opacity while operating within specific performance requirements.

Abstract: Disclosed is a intelligent light source that is capable of providing a uniform illumination image across the surface of an illuminated object analyzed by an optical detector. This is accomplished by individually controlling each light-emitting element of a linear array of light elements. Calibration of the array is accomplished by sequentially illuminating each optical element of the source and building an array of normalized detected data. The matrix is then inverted and multiplied by a linear array of ones to generate the calibration data. The calibration data are then used to program a simple logic device that allows accurate digital control of the intensity of each individual light element.

Abstract: A lighting unit of a tent includes lamps, wires provided for connecting the lamps to power, and holding trenches formed along lower sides of upper rod portions of a supporting frame of the tent. Each of the holding trenches is made to have a slot narrower than a middle room thereof, and the lamps have a diameter bigger than width of the slot so as not to fall down when held in the trenches. Thus, the lamps are hidden in the holding trenches to not badly affect appearance of the tent. And, light emitting diodes can be used as the lamps to help make the tent attractive.

Abstract: An ornamental garland has a translucent tube inside which multiple light strings and two wires are retained, where a garland is wrapped around the translucent tube. Each light string is composed of multiple light emitting diodes (LEDs) or tungsten filaments. The two wires are respectively connected to two ends of each light string whereby all lights strings are connected in parallel. Further, since the two wires are made from metal material having a proper strength and is bendable, the ornament garland is easily deformed to form any particular shape as required and maintained at such an expected configuration.

Abstract: The invention relates to a light indicator, comprising an indicator element (2) illuminable by a light source (1). The indicator element is manufactured from a substantially transparent material provided with an informative indicator pattern. The indicator element (2) is designed as a waveguide panel, wherein light beams propagate with total reflection and get outcoupled therefrom with a diffractive outcoupling system (2u), such as a grating structure or the like, which is configured as an indcator pattern, for producing an indicator pattern (2a) activable in the indicator element (2) by the action of light, such that divergent recesses and/or grooves of various sizes and/or shape constitute divergent local gratings of various sizes and/or shapes, such as multi-shaped and/or binary pixels and/or units, the filling factor, shape, profile and/or size thereof being optimized in such a way that the difraction efficiency is a function of place.

Abstract: A portable stack lamp includes a base supported by a supporting device, such as an extensible tripod and a plurality of rolling wheels, two or more lamp units stacked up to form a stack-up lamp body mounted on said base, and a cover which is adapted to cover a top opening of the housing of the lamp unit having a handle affixed thereon. The portable stack lamp is arranged to provide 360 degrees illumination so as to produce luminous beams in all directions while the user is able to selectively increase or decrease its luminous intensity by simply stacking up more or less lamp unit easily anytime. Therefore, the portable stack lamp can illuminate the surrounding that not only minimizes the number of work lamps to be used but also saves both the electrical energy and illumination cost.

Abstract: A decorative lamp-tree is provided. The decorative lamp-tree includes a decorative light bulb string (2) for connection to a tree including a trunk (1) having a plurality of branches (11) projecting from the trunk (1), with a plurality of sub-branches (12) projecting from each branch (11). The light bulb string (2) is arranged into a plurality of branch strings (21) for attachment to the respective branches (11), with each branch string (21) having a plurality of sub-branch strings (22) projecting therefrom for attachment to sub-branches (12). The branch strings (21) and sub-branch strings (22) of light bulbs are connected to the respective branches (11) and sub-branches (12) by connection means (3).

Abstract: An input device allowing the user to quickly differentiate between the input states is provided. The input device includes a cap, a first light source, a second light source and a control module. The first light source radiates a first light of a first color and the second light source radiates a second light of a second color. The cap includes a first portion and a second portion. The first portion displays the light of the first light. The second portion displays the light of the second light. When the input device is in a first state, the control module controls the first light source to radiate the first light to illuminate the first portion. When the input device is in a second state, the control module controls the second light source to radiate the second light to illuminate the second portion.

Abstract: A detachable lamp assembly device comprises a lamp seat and a lamp rod. A U shape reduce portion is formed at two lateral sides and an upper surface of the lamp rod. A U shape embedding block covers upon the reduced portion. The U shape embedding block has a through hole at a position corresponding to the positioning hole. A top center of the embedding block has an elastomer. When the lamp rod inserts into the lamp seat, the elastomer will eject the embedding block upwards. Thereby, the embedding block will be buckled to the embedding hole; and thus the lamp seat is conductive to the lamp rod. A user can assemble the lamp rod by insetting it into the lamp seat easily; and thus, the lamp is detachable for storage and transfer with a smaller volume.

Abstract: Illumination sources, each including at least one light emitting diode, are connected either in series or in parallel by a switching circuit, depending upon an applied input voltage. The switching circuit switches the illumination sources from series- to parallel-connection, or vice versa, when the applied input voltage crosses a threshold value in traversing the operating range of applied input voltages. Because the light emitting diodes within the illumination sources are switched from series to parallel connection at a defined kickover point, the voltage-luminance characteristic changes on opposite sides of the kickover point. The resulting overall voltage-luminance characteristic has greater variability in luminance across the entire operating range of applied input voltages, and luminance-variance is not limited to only a portion of the operating range.

Abstract: A portable stack lamp includes a base supported by a supporting device, such as an extensible tripod and a plurality of rolling wheels, two or more lamp units stacked up to form a stack-up lamp body mounted on said base, and a cover which is adapted to cover a top opening of the housing of the lamp unit having a handle affixed thereon. The portable stack lamp is arranged to provide 360 degrees illumination so as to produce luminous beams in all directions while the user is able to selectively increase or decrease its luminous intensity by simply stacking up more or less lamp unit easily anytime. Therefore, the portable stack lamp can illuminate the surrounding that not only minimizes the number of work lamps to be used but also saves both the electrical energy and illumination cost.

Abstract: The invention provides a modularized LED illuminator, wherein each module includes a power block and an illuminating block. The power block treats the extra power with rectification and transformation so that a working voltage is generated to the illuminating block for illuminating. Multiple modularized LED illuminators are connected in series or parallel to obtain larger brightness and modular connection.

Abstract: A ceiling tile system comprises modular acoustic light-emitting modules which can be of a standard size to be fitted into a hung ceiling or other ceiling system in conjunction with similar acoustic light-emitting modules or conventional ceiling tiles. Each acoustic light-emitting module includes a backing panel, a cover, and a rigid spacing member extending between the backing panel and the cover, with solid state light-emitting elements such as light-emitting diodes (LEDs) arrayed within each module. The cover may be made of fabric including metallic threads to enhance the diffusion of light. In one embodiment, two arrays of LEDs are provided on respective modules. The arrays may be driven independently or together. The LEDs provide shades of white light or colored light, as desired. The cover and lighting elements may be readily removable from the backing panel for ease of maintenance.

Abstract: In a vehicular lamp, a plurality of LED lines to which a plurality of LEDs are connected in series, are connected in parallel. The LEDs are arranged in a flat plane on a circuit board, the plurality of LEDs are arranged symmetrically with respect to a first centerline of the flat plane. Therefore, even when any one of the LEDs in the plurality of the LED lines becomes incapable of emitting light leading to all of the LEDs connected in series in the LED line to turn off, because the LEDs in the LED line are arranged symmetrically, the symmetrical balance of the LEDs shut down is maintained as an entire lamp, and the overall appearance of the lamp can be preserved.

Abstract: A traffic signal light is caused to have improved visual perceptibility and distinctiveness by the addition of blue light sources that interact with the conventional red and green lights to alter their hues. The blue light sources have a rapidly varying intensity, producing a flickering effect. The combination of the change in hue and flickering effect causes the red and green lights to attract greater visual attention and to be more readily distinguished from other lights encountered during driving, especially during night-time driving.

Abstract: A novelty lamp in the shape of an equilateral pyramid of any size, containing two discrete interior chambers, one being a light chamber, the enclosed space of the light chamber containing at least 10 point light sources, and a reflection chamber, used to reflect and admit the above light sources.

Abstract: Adjacent housings of a light fixture each mount a lamp. A rigid, hollow fitting extends between adjacent housings. The fitting's outside diameter is small enough relative to openings in the housings that receive the connector that adjacent housings can pivot, rotate and move longitudinally and pivot on the connectors. Electric wiring passes through the connectors between the housings.

Abstract: An illumination lamp assembly has a wire, a plurality of illuminant bulbs, a plurality of lamp holders installed on the wire. Each of the illuminant bulbs is disposed on the corresponding lamp holder. The wire has two cores, a plastic sheath covering and separating the cores, and a covering casing adhered on an outer layer of the plastic sheath.

Abstract: A flexible lighting device, comprising an elongated flexible tube including a translucent tubular shell with opposed tube ends, a flexible helical circuit board positioned in said tube extending between said opposed tube ends, said flexible helical circuit board having an exterior surface spaced from said tubular shell. Electrical circuitry is mounted to the circuit board and is connected to an external input source and an output source of electrical power. A plurality of light emitting diodes (LEDs) is mounted to the exterior surface of the helical circuit board and is electrically connected to the electrical circuitry. The LEDs are positioned adjacent to the tubular wall. The invention includes a method of making the flexible lighting device including providing a parallelogram-shaped flat circuit board having long edges and short edges with acute angles and obtuse angles and further including a stiffening member embedded with said flat circuit board.

Abstract: The multi-beam scanning device includes first and second light emitting elements that emit first and second light beams, respectively, a polygon mirror that deflects the first and second light beams to simultaneously scan the first and second light beams across an object. A prism having a light entrance portion and a light exit portion is located between the light emitting elements and the polygon mirror such that the first light beam enters the first prism through the light entrance portion and exits from the first prism through the light exit portion toward the polygon mirror. The light exit portion is inserted into the optical path of the second light beam to prevent a part of the second light beam from proceeding toward the polygon mirror.

Abstract: An outdoor decoration, primarily intended for the holiday season, with a wire frame that is divided into segments, the segments having either the same size or with as many segments as possible having the same size, the segments not having the same size to be comparative in size, to permit fitting the segments together for convenient shipping. The segments are held together by clips and lights are placed on the frame.

Abstract: A light bulb assembly for a light string has a light bulb with two electrical wires extending out of the light bulb, a spacer positioned between the two electrical wires to separate the two electrical wires, two cables respectively connected to a corresponding one of the electrical wires, a membrane partially enclosing the light bulb, the electrical wires and a portion of the cables, and a casing enclosing the membrane, a portion of the light bulb, the electrical wires and the cables. The light bulb is able to emit its light through the casing and because of the membrane, water resistance of the light string structure is enhanced.

Abstract: Illumination sources, each including at least one light emitting diode, are connected either in series or in parallel by a switching circuit, depending upon an applied input voltage. The switching circuit switches the illumination sources from series- to parallel-connection, or vice versa, when the applied input voltage crosses a threshold value in traversing the operating range of applied input voltages. Because the light emitting diodes within the illumination sources are switched from series to parallel connection at a defined kickover point, the voltage-luminance characteristic changes on opposite sides of the kickover point. The resulting overall voltage-luminance characteristic has greater variability in luminance across the entire operating range of applied input voltages, and luminance-variance is not limited to only a portion of the operating range.

Abstract: Multi-color illumination for a single display is achieved by utilizing an array of white light emitting diodes to produce illumination optically filtered by separate filters to produce the two or more desired output illumination colors at a desired luminance when the full rated voltage is applied to the light emitting diodes. Since all of the light emitting diodes have the same bandgap, voltage-controlled dimming produces uniform luminance changes for all colors as the voltage is reduced. A single voltage-controlled dimming driver circuit design and a single control voltage may therefore be utilized to achieve desired and uniform dimming characteristics independent of output illumination color.

Abstract: An ornamental lamp has a base. A secondary light bulb is mounted on top of the base. A barrel is also mounted on top of the base and around the secondary light bulb. A bottle containing water and wax is mounted on the barrel and having a bottom end inserted into the barrel to be close to the secondary light bulb. Two rods securely stand on the base and a plate is securely mounted on top ends of the rods. Two sockets are mounted on the plate and two primary light bulbs are respectively plugged to the sockets. A shade is maintained in a position above the primary light bulbs by a pole securely connected between the plate and the shade. Therefore, by such arrangement, the ornamental lamp can be used for illumination as well as providing an ornamental effect.

Abstract: A lighting apparatus for a vehicle includes a light source attached inside the vehicle, such as to an “A” pillar adjacent a front of a side window of the vehicle, where the light source is oriented to direct light toward a ground area adjacent the vehicle for security and convenience. Variations include also reflecting a portion of the light from the light source off an outside rearview mirror onto the ground area, and also directing a portion of the light toward an area inside the vehicle.

Abstract: A string of electrically powered ornaments such as lights connected in a series and sequentially identifiable indicia is applied sequentially in association with each ornament in the string to enable a person to trace the string for testing each ornament.

Abstract: The Holiday Lights Compacting System (HLCS) solves the problems of light strings in two ways. Firstly, it allows one to organize the lights in such a way that they may be stored easily for years to come. Secondly, the method is not painstakingly laborious, but quick and convenient since the system is part of the light string itself. It uses a special socket shape made of the traditional electrical design and a small guide attached to the side. Through these guides runs a nylon cord along the length of the string. All sockets may be pushed along the guide string aligning themselves for storage or packaging in small spaces, eliminating the tendency to destroy or tangle holiday light strings.

Abstract: A rope light mainly includes a #-sectioned elongate core enclosed in an outer tube, and a plurality of bulb strings parallelly set in two adjacent channels defined on the elongate core. The elongate core includes two or three spaced conductors pre-embedded therein when the core is formed, and the two selected channels are provided at bottom surfaces with a plurality of radially extended and staggered implant holes for receiving alternate bulbs and holding terminals connecting adjacent bulbs in the bulb string. The #-sectioned core has structural strength and the radially positioned bulbs and holding terminals provide supporting forces to protect the rope light from damaged bulbs or short circuit. The holding terminals may be reflective members or covered with reflective sleeves to reflect light beams emitted by the bulbs and thereby increase the illuminance of the rope light.

Abstract: The present invention relates to a linear lighting system with a linear light source. According to the invention, all the effective light around the optical axis emitted from the linear light source is introduced to a concave reflector so that the illumination is carried out only with the reflected light. The reflected light is controlled to be a converging or parallel beam of light so that a desired area is illuminated and the luminance is increased. In a mode of the invention, a cylindrical concave reflector 2 whose section taken vertical to a linear light source 1 is a part of an ellipse 2e having a first focus F1 at the linear light source 1 and a second focus F2 at an irradiation plane 3 (irradiation target point). The part of the ellipse covers an effective emission angle 2&thgr; of the linear light source 1, and a reflected light produced at the part from a light within the effective emission angle 2&thgr; is free of obstruction by the linear light source 1.

Abstract: The present invention relates to a decorative assembly of a light string, which includes a main electrical wire and many bulb sets, wherein a connecting wire is winded with the main electrical wire and has many rods in interval. A plastic decorative assembly is provided with a bottom receiver for engaging with the rod of the connecting wire easily and firmly that provides the decorative assembly connected with the light string as a single decoration.

Abstract: Illumination device (1) with light emitting diodes (LED) and an LED support element (10) on which a number of light pixels (11, 11′) are arranged which emit light. Said light pixels (11′) each comprise a number of LEDs with emission wavelengths suitable for additive colour mixing of the light from the light pixels (11′). A controller (5) is provided on the LED support element (10), by means of which a colour temperature and intensity parameter of the additively colour mixed light of each individual light pixel (11′) may be set. The controller assigns electrical LED currents to the colour temperature and intensity parameters and controls the LEDs in the light pixels (11′) by means of the assigned LED currents.

Abstract: A solid-state area illumination lighting apparatus, including a plurality of light sources, each light source having, a substrate; an organic light emitting diode (OLED) layer deposited upon the substrate, the organic light emitting diode layer including first and second electrodes for providing electrical power to the OLED layer; an encapsulating cover covering the OLED layer; and first and second conductors located on the substrate and electrically connected to the first and second electrodes, and extending beyond the encapsulating cover for making electrical contact to the first and second electrodes by an external power source; and a lighting fixture for removably receiving and holding the plurality of light sources and having a plurality of first electrical contacts for making electrical connection to the first and second conductors of the light sources, and second electrical contacts for making electrical connection to an external power source.

Abstract: An electrically powered illuminating handle/strap for lifting, pulling, carrying, opening, holding or whatever. The light source is the handle/strap. Illumination can occur in different ways by aiming the light emitting means. Directions can be: generally, as in all directions; partially, such as drown into a container, at what it is attached to, or towards the person using it; specifically, such as at signage or a keyhole on or adjacent to what it is attached to; or in a combination of several directions at once. Different or combinations of light emitting means can be used. The handle can be rigid or flexible. This is a simple cost effective way to increase visibility and safety.

Abstract: An outdoor decoration, primarily intended for the holiday season, with a wire frame that is divided into segments, the segments having either the same size or with as many segments as possible having the same size, the segments not having the same size to be comparative in size, to permit fitting the segments together for convenient shipping. The segments are held together by clips and lights are placed on the frame.

Abstract: A lamp string comprises a plurality of serially connected lamp units. Each lamp unit comprises a casing, two base plates respectively mounted in two ends of the casing, an illuminating member mounted in the casing, at least one metallic bar extending between the base plates and electrically connected to the illuminating member, and two end covers removably attached to the ends of the casing for closing the casing. Two adjacent ones of the lamp units are electrically connected by at least one wire that is electrically connected to the illuminating member and the metallic bar. A soft tube may be provided to enclose the wire.

Abstract: A LED light assembly, the light assembly comprising a reflective plate comprising a plurality of perforations formed therethrough the reflective plate, a plurality of LED bulbs wherein each LED bulb protrudes through a respective perforation of the plurality of perforations, and a control circuit selectively operable to produce a plurality of colored lights through the plurality of LED bulbs wherein the control circuit comprises a switch which when activated a defined number of times produces a plurality of at least light colors and light patterns wherein each of the plurality of at least light colors and light patterns are selected based on the defined number of times the switch is activated.

Abstract: A semiconductor light source for illuminating a physical space has been invented. In various embodiments of the invention, a semiconductor such as and LED chip, laser chip, LED chip array, laser array, an array of chips, or a VCSEL chip is mounted on a heat sink. The heat sink may have multiple panels for mounting chips in various orientations. The chips may be mounted directly to a primary heat sink which is in turn mounted to a multi-panel secondary heat sink. A TE cooler and air circulation may be provided to enhance heat dissipation. An AC/DC converter may be included in the light source fitting.

Abstract: A semiconductor light source for illuminating a physical space has been invented. In various embodiments of the invention, a semiconductor such as and LED chip, laser chip, LED chip array, laser array, an array of chips, or a VCSEL chip is mounted on a heat sink. The heat sink may have multiple panels for mounting chips in various orientations. The chips may be mounted directly to a primary heat sink which is in turn mounted to a multi-panel secondary heat sink. A TE cooler and air circulation may be provided to enhance heat dissipation. An AC/DC converter may be included in the light source fitting.

Abstract: A light driver for shoe comprises a power source, a switch unit, a controller, and a plurality of LEDs. The power source is composed of a first battery and a second battery in serial arrangement to provide two kinds of levels for LEDs with different characteristics. The switch unit is connected to an input of the controller, and the LEDs are connected to an output of the controller. The controller receives a triggering signal from the switch unit and drives the LEDs to flash.

Abstract: The present invention relates to a decorative assembly of a light string, which includes a main electrical wire and many bulb sets, wherein a connecting wire is winded with the main electrical wire and has many rods in interval. A plastic decorative assembly is provided with a bottom receiver for engaging with the rod of the connecting wire easily and firmly that provides the decorative assembly connected with the light string as a single decoration.

Abstract: A decorative lamp has a base having two ends wherefrom a first arcuate rod and a second arcuate rod integrally and respectively extend to interact to each other. A first post is connected between a first free end of the first arcuate rod and one end of the base. A second post is connected between a first free end of the second arcuate rod and the other end of the base.

Abstract: A beacon light includes a tubular bottom shell having a closed end and an open end. A battery housing is in the bottom shell and is adapted to contain batteries and connect them in series. A tubular, translucent light diffuser is on and secured to the open end of the bottom shell. A printed circuit board is in the light diffuser. A plurality of light emitting diodes (LEDs) are mounted on the printed circuit board and electrically connected in parallel with respect to each other. Also on the printed circuit board is a switch and a integrated circuit which are electrically connect in series with the LEDs. The printed circuit board also has battery contacts at one end which engage electrodes on the batteries in the bottom shell so as to connect the LEDs to the batteries through the switch and the integrated circuit. A switch button extends through the light diffuser and is adapted to engage the switch to operate the switch. A cap is on the top of the light diffuser.

Abstract: A decorative lamp has a base having two ends wherefrom a first arcuate rod and a second arcuate rod integrally and respectively extend to interact to each other. A first post is connected between a first free end of the first arcuate rod and one end of the base. A second post is connected between a first free end of the second arcuate rod and the other end of the base. A plurality of bulbs is assembled on the base, the first arcuate rod and the second arcuate.

Abstract: A newel post system contains a light emitting source, such as a halogen and/or fluorescent bulb, for example. The system includes a newel post with a central bore for installing the light source and openings which permit the light to be emitted external of the newel post. The light source preferably is connected to a conventional electric power grid, and, in the preferred embodiment includes a transformer and a sensor that closes to provide power to the light emitting source when the sensor senses some predetermined condition. The light source may also be connected to a power source via an emergency power supply unit whereby the emergency power supply unit provides power to the light bulb when the power ceases to be delivered to the emergency power supply unit.

Abstract: A lighting fixture has a plurality of coaxial round or other shaped rings on which a string of miniature lights is mounted. The rings are spaced apart when the fixture is in an active position and are stacked relatively close together when collapsed into a storage position. Slide links or the like interconnect the rings and limit expansion of the fixture into its active position.

Abstract: A tubular light has a hollow core 40, multiple light bulbs 50 and two wires 60. The core 40 has a pair of opposed notches 41 defined along the length of the core 40. Each of the notches 41 has a plurality of blind holes 411 defined in a bottom defining the notch 41. The hollow core 40 further has two slits 412 each oppositely defined along one of the notch 41. Each of the light bulbs 50 is received in one of the blind holes 412 with one blind hole 411 spaced apart and has two connection wires 51 extending toward opposite directions. Furthermore, the periphery of the casing 70 that covers the core 40, the light bulbs 50, the wires 60 in a water tight manner is polygonal so as to increase the refraction of the light from the tight bulbs 50 and penetrating through the casing 70.