Abstract: A light emitting device includes: a light source unit which has a first and a second LED which are connected in parallel and emit lights of different colors, respectively. The lights of the first and the second LED are mixed to provide an emission light of the light source unit when an operating voltage is applied. The light source unit further has a resistor which is connected in series to the first LED to make forward current changing characteristics of the first and the second LED depending on change in the operating voltage to be different from each other, so that a required luminous flux-color temperature property, in which change in a color temperature of the emission light is made to depend on change in a luminous flux of the emission light, is obtained while the first and the second LED are turned on by applying the operating voltage.

Abstract: The invention relates to a light application apparatus (1) for applying light to an object (3). A light source (4) generates processing light (2) and sensing light (5), which are coupled into the object (3). A light detector (8) detects the sensing light (5) after having left the object (3), and a control unit (9) controls the light source (4) such that processing light (2) in a processing time interval and sensing light (5) in a sensing time interval are alternately generated. Since processing light and sensing light are generated alternately, the generation of the processing light and of the sensing light is decoupled, i.e. the processing light can be optimized for processing purposes and the sensing light can be optimized for sensing purposes. This allows improving the quality of sensing the object and, thus, the quality of controlling the application of light depending on properties of the object.

Abstract: An operating light (36) and a process are provided for lighting an operating table via an operating light (36). The operating light (36) includes at least one first radiation source (1), which is suitable for producing light (12) with locally different, especially radially outwardly decreasing color temperature distribution (18) in a plane extending at right angles to the work area.

Abstract: An endoscope system comprises first and second emitters, a fiber, and a controller. The first emitter emits illumination light to a photographic subject. The second emitter emits infrared light. Emission intensity of the second emitter is stronger than that of the first emitter. The fiber has a tip which moves in a spiral when viewed from the photographic subject during scan periods. The controller controls emission timing of the first and second emitters. Light emitted by the first and second emitters is cast from the tip of the fiber onto the photographic subject. The second emitter emits in a predetermined period of one of the scan periods, based on control of the emission timing, so as to shine infrared light with the second emitter to at least one part of the photographic subject, in order to perform marking.

Abstract: The invention provides a lighting device comprising at least one lamp and at least one OLED which are arranged to generate light, wherein the at least one OLED is arranged to transmit at least part of the light generated by the at least one lamp. The lighting device of the invention may advantageously provide the option of providing two types of light, namely, “normal” of the lamp, which can be used for e.g. illumination purposes, and OLED light of the OLED, which can be used for lumination purposes.

Abstract: A light fixture allows individual light bulbs to be arranged in compact fashion to maximize the number of bulbs per given area in the fixture. To facilitate replacement or exchange of the bulbs, the bulbs are mounted in alternating succession on a pair of separately movable supports, reorientation of which serves to remove the bulbs from the tight packed arrangement, to one in which the bulbs are sufficiently separated from one another to allow hand access for removal and installation of the bulbs. A distinct aspect of the aforementioned feature of the invention independent of the movable supports resides in the ability to utilize two of more of the fixtures to multiply the light produced. Advantageously, the fixtures can be arranged in direct physical series, side by side, or to form an array extending in orthogonal directions.

Abstract: A lamp includes at least one luminous source (14, 6, 8), in particular a low-pressure discharge lamp, for producing main illumination and having at least one alternative luminous element (22), in particular a light-emitting diode arrangement having at least one LED, for producing alternative illumination, which are arranged on a cap (12) , and having electronics, wherein a switching arrangement, which can be actuated manually, for operating the lamp in the main illumination mode, the alternative illumination mode or in both illumination modes at the same time is provided in the cap.

Abstract: Different arrangements for improving the coupling-in efficiency between an LED assembly and a light guide are disclosed. In a first arrangement, a substantially planar end of a light guide is seated on a perimeter wall of a support that encloses a LED assembly, and a reflecting surface enhances coupling efficiency of a light guide. Alternative arrangements use a separate coupler disposed between the LED assembly and the light guide, which coupler has a paraboloid or aspheroid conformation to develop substantially collimated light that is directed into the light guide. The cavity around the LED assembly and within the coupler, may be air or a material having an index of refraction that closely matches the index of refraction of the light guide material.

Abstract: A luminary has a central lamp, an emergency lamp and a control box. The emergency lamp is ring-shaped and mounted around a light-emitting end of the central lamp and has a base and a circuit board. The circuit board has an LED set and a cable set connected to the LED set. The control box is electrically connected to cable set of the circuit board, adapted to connect to an AC power and has a battery. The control box drives the LED set when an outage of the AC power occurs. Since emergency illumination is provided by the emergency lamp and is independent of normal illumination provided by the central lamp, battery power for emergency illumination can be kept from being quickly consumed by the central lamp that is usually power-consuming.

Abstract: A power adaptor for a lighting unit, comprising an input for coupling to an electrical power supply and a controller adapted to monitor the input and operable to provide at least two independent electrical outputs; each output having a power level based on an amount of power available at the input. The independent electrical outputs may be used to supply and control an intensity and/or color characteristic of a solid state lighting unit; comprising at least two separately controllable colored emitters.

Abstract: An input device capable of enhancing symbol readability for an electronic product includes a plurality of keypads for displaying a plurality of first kind symbols and a plurality of second kind symbols; a detection unit for detecting an operation mode of the electronic device; and a control unit coupled to the detection unit and the plurality of keypads for controlling the plurality of keypads to display the plurality of first kind symbols or the plurality of second kind symbols according to a detection result of the detection unit.

Abstract: An Edison-style light bulb (40) which supports a plurality of light emitting diodes (LEDs) (50) and an illumination source (54). First and second electrical circuits (56) and (58) are mounted in the bulb to supply electrical power to the illumination source and to the LEDs. A switch circuit (60) is connected to control the supply of electrical power to the first and second electrical circuits (56) and (58) to adjust and coordinate the light output from the LEDs (50) and from the illumination source (54).

Abstract: An input device capable of enhancing symbol readability for an electronic product includes a plurality of keypads for displaying a plurality of first kind symbols and a plurality of second kind symbols; a detection unit for detecting an operation mode of the electronic device; and a control unit coupled to the detection unit and the plurality of keypads for controlling the plurality of keypads to display the plurality of first kind symbols or the plurality of second kind symbols according to a detection result of the detection unit.

Abstract: The device according to the invention is designed for growth acceleration and regeneration of lawn areas (2). It comprises a housing (3) which is open towards the bottom and can be placed on a lawn area (2) and delimits a space (6) above the lawn area (2), the housing (3) being formed so as to be transparent and/or comprising an illumination device (32) for illuminating the lawn area (2). The housing (3) is realized with a moving equipment (17) for automatically moving the housing (3) over the lawn area (2).

Abstract: A decorative light display includes a plurality of light source assemblies, each respective light source assembly of the plurality of light source assemblies having a known power requirement and at least one power supply operably coupled to each respective light source assembly of the plurality of light source assemblies for supplying power from an external power source to each respective light source assembly of the plurality of light source assemblies, the at least one power supply providing power to each respective light source assembly, which power satisfies the known power requirement thereof. A method of displaying decorative lighting is further included.

Abstract: A lighting panel system includes a lighting panel including a first string of solid state lighting devices configured to emit light at a first wavelength and a second string of solid state lighting devices configured to emit light at a second wavelength, different from the first wavelength, and a current supply circuit configured to supply a drive current to the first string in response to a control signal. A photosensor is arranged to receive light emitted by the panel, and a control system is configured to sample an output signal of the photosensor and adjust the control signal responsive thereto to thereby adjust an average current supplied to the first string by the current supply circuit. Methods of operating a lighting panel are also provided.

Abstract: In light of the foregoing background, exemplary embodiments of the present invention provide an improved apparatus, method and system for providing multi-mode illumination. Specifically, exemplary embodiments of the present invention include a lighting apparatus capable of multiple modes of illumination (e.g., infrared illumination mode, visible light illumination mode, spot-light mode, flood-light mode, blended spot and flood light modes, etc.) and battery powered operation. The lighting apparatus further includes a fuel gage module capable of communicating an expected battery life based on a current operating mode of the lighting apparatus and a current state of charge of the battery. Lighting devices structured in accordance with various embodiments of the present invention may be light-weight and portable to improve ease of transport and deployment. Such lighting devices may also include a stable and yet retractable mounting device.

Abstract: A modular lighting apparatus includes a replaceable bulb assembly, an adapter, and a mechanical and electrical connector assembly that removably connects the bulb assembly to the adapter for use. The bulb assembly includes a light-emitting component mounted to a body. In example embodiments the light-emitting component includes spiral-tube CFLs, low-profile transverse CFL tubes, and omni-directional LED arrays. The adapter includes a standard screw base mounted to a body that houses an electronic ballast. In this way, the bulb assembly can be removed from the adapter and replaced, while reusing the electronic ballast in the adapter. And the screw-base adapter allows the reuse of the electronic ballast in standard screw-socket household light fixtures. In addition, the reusable adapter base also may be provided with an integral photocell for light-based control of the lighting apparatus without increasing the overall height of the composite lighting apparatus.

Abstract: A keypad device for an electronic device includes a substrate, a first light-emitting device coupled to the substrate for generating a first colored light source, a second light-emitting device coupled to the substrate for generating a second colored light source different from the first colored light source, a first transparent board made of a translucent material of a first color for displaying a first symbol, a second transparent board made of a translucent material of a second color, for displaying a second symbol, and a transparent film deployed on the first transparent board and the second transparent board. The first color is a complementary color of the color of the first colored light source, and the second color is a complementary color of the color of the second colored light source.

Abstract: The invention relates to a lamp with a first light source generating white light, comprising at least one fluorescent lamp (2) or an incandescent lamp, as well as a second light source comprising at least one set of light-emitting diodes (4, 5; 300), and comprising a reflector (1) for the light emitted by the light sources, wherein a cooling device (6, 7) for the at least one set of light-emitting diodes (4, 5) is attached to the reflector (1) and is thermally linked to the at least one set of light-emitting diodes (4, 5), and wherein the lamp comprises a translucent and light-dispersing medium (3) in the optical path of the light emitted by the lamp.

Abstract: A lamp arrangement is disclosed, with at least one low-pressure discharge lamp, in particular, a compact fluorescent lamp to generate a main illumination with at least one discharge bulb, fitted in a socket and at least one alternative light source, in particular, a light diode arrangement with at least one light diode (LED) for generation of an alternative illumination. According to the invention, the light diode arrangement is at least partly arranged in the vicinity of cold spots on the low pressure discharge lamp.

Abstract: A headlamp for a vehicle or other application, including a circular arrangement of groupings of IR LEDs in a retaining ring, each grouping of IR LED providing a different beam pattern of infrared illumination, and a HID lamp surrounded by the retaining ring, for providing visible light. A switch system is also provided, for enabling either the visible light or the infrared light, and for selecting a beam pattern.

Abstract: A drying light source (1), in which the light of a number of single light sources (3) is applied heterodyned and bundled to an object level (5) with the help of optical elements (6, 4, 7, 8).

Abstract: A light emitting apparatus includes a source of light for emitting light; a down conversion material receiving the emitted light, and converting the emitted light into transmitted light and backward transmitted light; and an optic device configured to receive the backward transmitted light and transfer the backward transmitted light outside of the optic device. The source of light is a semiconductor light emitting diode, a laser diode (LD), or a resonant cavity light emitting diode (RCLED). The down conversion material includes one of phosphor or other material for absorbing light in one spectral region and emitting light in another spectral region. The optic device, or lens, includes light transmissive material.

Abstract: The invention relates to a lighting device (1) comprising a plurality of light sources which are capable of emitting light towards a surface (S). The lighting device is arranged in such a way that light from at least one first light source (2) forms a first lighting pattern (I) of white light on said surface and light from a plurality of second light sources (3) forms a second lighting pattern (II) of light of a different color on said surface. The second lighting pattern substantially surrounds said first white lighting pattern.

Abstract: An illumination system comprises a gas discharge lamp (1) and at least one light-emitting diode (2). The illumination system according to the invention comprises means for reducing ultraviolet light emitted by the gas discharge lamp reaching the light-emitting diode. Preferably, the means for reducing ultraviolet light comprises an ultraviolet-absorbing or ultraviolet-reflecting shielding means ( ) provided between the gas discharge lamp and the light-emitting diode. Preferably, the gas-discharge lamp is a fluorescent lamp, for instance, a low-pressure mercury-vapor discharge lamp. Preferably, the illumination system is employed in an emergency lighting device or in a display device, in particular a liquid-crystal display (LCD) device. The illumination system according to the invention has a relatively long life.

Abstract: The invention relates to a lighting device having a rail device (2) that can be fixed to a surface of an object (7), said rail device having two interspaced rails (21,22) to which a lamp (3,3) can be fixed and supplied with power. At least two lamps (3,3) arranged on the rails (21,22) are provided with low voltage power via the rails (21,22) and at least two lamps (3,3) of different type can be fixed to the rails (21,22) and operated. The invention also relates to an adapter for fixing a lamp to a rail device of a lighting device.

Abstract: A spotlight for shooting films and videos is provided. The spotlight comprising light-emitting diodes (LEDs) arranged on a light-emitting surface, of which color LEDs emit different LED colors (R, G, A, B, Ye) and provide luminous flux portions for a color mixture. At least one LED comprises a luminescent LED. The spotlight further comprising a device for setting the luminous flux portion emitted by the LEDs, which device drives the LEDs at least in groups. At least one color LED emits the LED color “blue” or “cyan”, and the luminescent LED comprises a yellow-green, daylight-white, neutral-white or warm-white luminescent LED, which covers at least a portion of the color LEDs with the exception of the color LED emitting the LED color “blue” or “cyan”.

Abstract: An organic luminous means and an illumination device comprising such a luminous means are described. An optical display apparatus, emergency lighting, motor vehicle interior lighting, an item of furniture, a construction material, a glazing and a display comprising such a luminous means and, respectively, comprising an illumination device having such a luminous means are also described.

Abstract: Disclosed is a mechanic's creeper equipped with a lighting system. Lights can be placed on a bar surrounding the mechanic's head like a halo. In this position, the lights illuminate the area where the mechanic needs to work without getting light in the mechanic's eyes or casting annoying shadows. The creeper can include a battery to power the lights. A rechargeable battery can be provided, with the battery recharging when the creeper is not in use. A “low charge” indicator can be included. Many types of lighting fixtures are contemplated, but LEDs are preferred because they are rugged and produce a good deal of even light without drawing too much power. When multiple LEDs are used, different LEDs can be aimed in slightly different directions to more evenly illuminate the work area under the automobile. A lighting unit can be made as an add-on to attach to an existing creeper.

Abstract: Disclosed herein are apparatus, methods, and systems for deriving composite beams from a plurality of light sources such as LEDs. Optical units comprising a plurality of light sources, each source having an associated optic which is individually positionable, are developed using optimization techniques that allow for lighting different target areas in an effective manner by rotating or otherwise positioning the reflectors, refractive lenses, TIR lenses, or other lens types to create a composite beam. The apparatus, methods, and systems of lighting herein make it possible to widely vary the types of beams from an available fixture using a small number of optics and fixtures. In some cases, by using a combination of individual beam patterns from the same or different types of light sources, a small set of individual optics may be sufficient to create a majority of the typical and specialized composite beams needed to meet the needs of most lighting projects and target areas.

Abstract: A power outage socket device that may be installed on a variety of lamps or light fixtures. The bottom of the device has a male connector adapted to be inserted into the light socket on the lamp or light fixture, in place of the light bulb. A female socket adapted to receive the light bulb is located on the top of the device. The male connector may be recessed. When power is interrupted, emergency power is provided to one or more emergency light sources on the device to provide light. Emergency power is provided by one or more batteries, which may be rechargeable. The device also may include means for connecting a lamp harp, or for allowing a lamp harp to pass through the device. A photoelectric light sensor may be used to detect ambient light and control whether emergency light is provided when normal power is interrupted.

Abstract: An LED lamp assembly includes a lamp supporter, a plurality of first and second lamps supported by the lamp supporter and a reflecting cover located above and covering the lamp supporter. The lamp supporter includes a hollow post, a plurality of bars radially connected to the post and a plurality of hollow cylinders connected to the bars, respectively. Each cylinder has a plate located inside thereof to divide an inside of the each cylinder into two parts. The first and second lamps are mounted on two opposite surfaces of the plates of the cylinders, respectively. The reflecting cover has a surface facing and being slantwise to the first lamps to provide a large range of reflection.

Abstract: 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.

Abstract: A backlight assembly for a liquid crystal display device is disclosed with high efficiency and high brightness. The backlight assembly includes a light source in which a first light emitting diode and a second light emitting diode are combined, a board where the light source is mounted, and optical sheets arranged in front of the light source. By alternately arranging a front emitting type LED and a side emitting type LED in various structures, high efficiency and high brightness may be obtained using a small number of light emitting diodes.

Abstract: A candle assembly includes a support base with a melting plate upon which a meltable solid fuel rests and a wick holder to hold a wick and engage the meltable solid fuel. The candle assembly further includes a control unit having at least one electrical component to control a light emitting system.

Abstract: The invention provides a lighting device comprising at least one lamp and at least one OLED which are arranged to generate light, wherein the at least one OLED is arranged to transmit at least part of the light generated by the at least one lamp. The lighting device of the invention may advantageously provide the option of providing two types of light, namely, “normal” of the lamp, which can be used for e.g. illumination purposes, and OLED light of the OLED, which can be used for lumination purposes.

Abstract: A system provides white light having a selectable spectral characteristic (e.g. a selectable color temperature) using an optical integrating cavity to combine energy of different wavelengths from different sources with white light. The cavity has a diffusely reflective interior surface and an aperture for allowing emission of combined light. Control of the intensity of emission of the sources sets the amount of primary color light of each wavelength added to the substantially white input light output and thus determines a spectral characteristic of the white light output through the aperture. A variety of different elements may optically process the combined light output, such a deflector, a variable iris, a lens, a variable focusing lens system, a collimator, a holographic diffuser and combinations thereof.

Abstract: A street light that uses both a low-pressure sodium vapor bulb and a metal halide bulb is disclosed. The combination of these two light bulbs creates an efficient light source that is highly effective in bad weather conditions as well as able to provide good color differentiation. Further, the street light can be battery powered, where the batteries are recharged by solar cells, wind turbines, or both. A self-sufficient cost-effective street light is produced that uses renewable energy to provide light that has high penetration and wide color spectrum characteristics.

Abstract: A device (50) with modal lighting includes a translucent layer (74); a first light source (60) operative to project light (94) through the translucent layer (74); and a second light source (65b) operative to project light (93) through the translucent layer (74). The first light source (60) prevents light (91) projected from the second light source (65b) from entering a portion (74a) of the translucent layer. A method (250) for modal lighting in a device includes projecting light by a first light source through a translucent layer (260); projecting light by a second light source through the translucent layer (270); and preventing, by the first light source light, projected by the second light source from entering a portion of the translucent layer (280).

Abstract: An illuminable sign (20) has a base (22); a trough (24) having a configuration C formed in the base (22); a light dispensing medium (26) having the configuration C fitted in the trough (24) and including a pair of light-entering ports (28, 30); a light generator (32) fixed in operative relation between the pair of light-entering ports (28, 30), the light generator (32) including at least one light source (34); and a cover (36) fitted to the base.

Abstract: A lighting system comprising an electric lamp (1), especially a fluorescent lamp, which is provided with a first (11) and at least one second lamp coil (12). The lighting system further comprises an electronic ballast (2) that is electrically connected to the lamp coils (11, 12) and at least two additional light sources (31a to 31c; 32a to 32c) which are interconnected in parallel. The parallel connection (3) of the two additional light sources (31a to 31c; 32a to 32c) are serially connected between the first (11) and the second lamp coil (12).

Abstract: The present invention relates to a round garage light assembly having a housing with a lamp mounting surface wherein a main HID lamp and an auxiliary circular high output fluorescent lamp are mounted. The auxiliary lamp is mounted centrally within the assembly and above the photometric center of the high intensity discharge lamp so that the light pattern emitted from the auxiliary lamp is symmetrical and the auxiliary lamp does not shadow the light emitted from the HID lamp.

Abstract: An illuminating device comprises a base, a light source and at least one first layer, wherein said light source is assembled on said base to emit a first color temperature light, while first layer is located on the base along the first light irradiation path. The first light is passed through the first layer to react with said first layer to form a second color temperature light for emission, wherein said first color temperature is ranged from 2800K to 20000K, while excitation wavelength range of said first layer is mainly beyond the wavelength of ultraviolet lights for further adjusting the second color temperature range.

Abstract: Disclosed is a decoratively illuminating apparatus using a candle including a candle, a light transparent holder, and a light transparent accommodating seat held in the holder while accommodating the candle. The candle (100) includes a candle body (20), a flammable wick (30) fixed in the center of the candle body (20), and a light transmission line (40) arranged along the flammable wick around the center of the candle body and fixed such that a lower end of the light transmission line is exposed from the lower side of the candle body. The holder (200) includes a bore (210) formed in a top side (201) as a light radiating space, and a light radiating unit (260) having a photosensor (245) to detect light of the flammable wick (30) through the light transmission line (40) and a light source (222) electrically connected to the photosensor (245).

Abstract: A light-source assembly includes a low-pressure fluorescent discharge tube arrangement having a cold spot temperature and radiating white light and at least one light-emitting diode radiating red light. An operating circuit supplies current to the discharge tube arrangement and the light-emitting diode. An outer envelope surrounds at least the discharge tube arrangement and provides a substantially homogenous light resulting from a mixture of the light radiated by the discharge tube arrangement and the light radiated by the light-emitting diode. A base mechanically and electrically connects at least the discharge tube arrangement in the outer envelope to a lamp-holder.

Abstract: A lighting fixture for use with an aquarium includes a lamp holder holding a lamp tube, a shade made of a light guide material and provided above the lamp tube, the shade having a seat at the rear side. The lighting fixture also includes a circuit board mounted in the seat to hold a set of LEDs and a set of control buttons for controlling operation of the LEDs to work as a night lamp when the lamp tube is off.

Abstract: A lighting assembly topology that utilizes spectrum controlling materials to render the illumination compatible with night vision imaging systems. The lighting assembly can be used as either a general illumination source or can be used as a backlight for a transmissive display such as a liquid crystal display. The lighting assembly makes use of spectral filtering which is both transmissive and absorptive for specific spectral regions. The exit port of the lighting assembly is completely filtered with a red and near infrared reflective filter. The absorption of the near infrared spectrum to which NVIS are sensitive is reflected by the typical near infrared reflective filter covering the exit port and absorbed within the material lining the housing of the lighting assembly.

Abstract: A backlight unit having a supplementary lamp for a smooth starting operation includes multiple light-emitting lamps arranged in one direction on a cover bottom; an inverter printed circuit board (PCB) provided at one rear side or both rear sides of the cover bottom; a first hole provided at a predetermined portion of the inverter PCB; a supplementary lamp provided in the first hole of the inverter PCB; and a second hole provided at a predetermined portion of the cover bottom corresponding to the supplementary lamp.

Abstract: A surface light source device includes a first light source disposed so as to face a reflecting surface of a reflecting member, a second light source having spectrum selectivity different from that of the first light source, a light diffusing member configured to diffuse light rays emitted from the first and second light sources, and a transparent light control member disposed between the first light source and the light diffusing member so as to face the first light source and the light diffusing member. The light control member directs the light rays emitted from the first and second light sources in predetermined directions. The second light source faces an outer peripheral surface of the light control member. The light ray emitted from the second light source is directed by the light control member inside the light control member so as to be output towards the light diffusing member.