8030 results about "Lighter device" patented technology

A lighting device comprising first and second groups of solid state light emitters, which emit light having dominant wavelength in ranges of from 430 nm to 480 nm and from 600 nm to 630 nm, respectively, and a first group of lumiphors which emit light having dominant wavelength in the range of from 555 nm to 585 nm. If current is supplied to a power line, a combination of (1) light exiting the lighting device which was emitted by the first group of emitters, and (2) light exiting the lighting device which was emitted by the first group of lumiphors would, in an absence of any additional light, produce a sub-mixture of light having x, y color coordinates within an area on a 1931 CIE Chromaticity Diagram defined by points having coordinates (0.32, 0.40), (0.36, 0.48), (0.43, 0.45), (0.42, 0.42), (0.36, 0.38). Also provided is a method of lighting.

In embodiments of the present invention improved capabilities are described for autonomous shifting of at least a portion of a lighting load off an energy distribution grid, comprising electrically connecting a lighting device to the energy distribution grid; causing the lighting device to interpret information obtained from an information source proximate the lighting device; and causing the lighting device to select from at least two different power sources based on the interpretation, where selecting may include a sharing of the load between the two different power sources, and where one power source may be the energy distribution grid.

Disclosed is an electroluminescent device comprising a light-emitting layer containing a light emitting material that contains an organometallic complex comprising a metal selected from the group consisting of Pt, Pd and Ir, and a tridentate (N{circumflex over ( )}C{circumflex over ( )}N) ligand, wherein the tridentate (N{circumflex over ( )}C{circumflex over ( )}N) ligand represents a ligand that coordinates to the metal through a nitrogen donor bond, a carbon-metal bond, and a nitrogen donor bond, in that order, wherein at least one of the nitrogen donors is part of an aromatic ring or an imine group. The invention also includes a display or room lighting device employing the device of the invention and a process of emitting light from the device of the invention. The device of the invention provides good luminance efficiency.

A lighting device comprises, or consists essentially of, a housing, a solid state light emitter and conductive tracks. The conductive tracks are positioned on the housing and are coupleable with a power supply. The conductive tracks comprise a positive conductive track and a negative conductive track. Each of the solid state light emitters is in electrical contact with a positive conductive track and a negative conductive track. Another lighting device comprises a fixture and a solid state light emitter in which the fixture comprises conductive elements which are coupleable to at least one power supply and the solid state light emitter is mounted on the fixture. There is also provided a lighting device which provides light of an intensity which is at least 50 percent of its initial intensity after 50,000 hours of illumination.

As a novel substance having a novel skeleton, an organometallic complex having high emission efficiency and improved color purity is provided. The color purity is improved by reducing the half width of an emission spectrum. The organometallic complex is represented by General Formula (G1). In General Formula (G1), at least one of R1 to R4 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and the others each independently represent hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms. Note that the case where all of R1 to R4 represent alkyl groups each having 1 carbon atom is excluded. Further, R5 to R9 each independently represent hydrogen or a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.

As a novel substance having a novel skeleton, an organometallic complex with high emission efficiency which achieves improved color purity by a reduction of half width of an emission spectrum is provided. One embodiment of the present invention is an organometallic complex in which a β-diketone and a six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom are ligands. In General Formula (G1), X represents a substituted or unsubstituted six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom. Further, R1 to R4 each represent a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.

A method and system allow a lighting device having light sources with multiple color temperatures to vary a color temperature of the lighting device in response to changing dimming levels. The light sources are non-incandescent light sources, such as light emitting diodes and / or gas-discharge lights. A dimmer circuit provides a dimming signal that indicates a selected dimming level. The lighting device includes a light source driver and a light source driver controller that cooperate to vary drive currents to the light sources in response to the selected dimming level. By varying the drive currents in different relative amounts, the color temperature of the lighting device changes in response to dimming level changes. In at least one embodiment, changes in the color temperature of the lighting device in response to the dimming level changes simulates the color temperature changes of an incandescent light source.

A lighting device comprising at least one non-white light source, at least a first supplemental light emitter and at least a second supplemental light emitter. The non-white light source(s) is outside an area from 0.01 u′v′ above to below the blackbody locus, and within an area defined by curves between saturated light of wavelength 430-480 nm and 560-580 nm and line segments between saturated light of wavelength 430-580 nm and 480-560 nm. The first supplemental light emitter(s) have dominant emission wavelength of 465-540 nm. The second supplemental light emitter(s) have dominant emission wavelength of 600-640 nm.

There is provided a lighting device which emits light with an wall plug efficiency of at least 85 lumens per watt. The lighting device comprises at least one solid state light emitter, e.g., one or more light emitting diodes, and optionally further includes one or more luminescent material. In some embodiments, the output light is of a brightness of at least 300 lumens. In some embodiments, the output light has a CRI Ra of at least 90. Also, a method of lighting, comprising supplying electricity to a lighting device which emits light with a wall plug efficiency of at least 85 lumens per watt.

Disclosed is a light-emitting element having high emission efficiency, capable of driving at low voltage, and showing a long lifetime. The light-emitting element contains a compound between a pair of electrodes, and the compound is configured to give a first peak of m / z around 202 and a second peak of m / z around 227 in a mass spectrum. The first and second peaks are product ions of the compound and possess compositions of C16H9 and C17H10N, respectively, which are derived from a dibenzo[f,h]quinoline unit.

A first lighting device comprises at least one plural cavity element and a plurality of solid state light emitters. A second lighting device comprises at least one plural cavity element, a plurality of solid state light emitters and at least one encapsulant region, at least a portion of the plural cavity element being surrounded by the encapsulant region. Each plural cavity element has at least two optical cavities. Each optical cavity comprises a concave region in the plural cavity element. At least one solid state light emitter is present in each of at least two of the optical cavities.

A manufacturing apparatus of a lighting device, including a vacuum chamber, an exhaust system by which the vacuum chamber is set to a reduced-pressure state, and a transfer chamber from which a substrate is transferred to the vacuum chamber is provided. The vacuum chamber of the manufacturing apparatus includes a plurality of deposition chambers in which a first electrode, a first light-emitting unit including at least a light-emitting layer, an intermediate layer, a second light-emitting unit including at least a light-emitting layer, a second electrode, a sealing film are formed, and a substrate transfer means by which the substrate is sequentially transferred to the deposition chambers.

A lighting device, comprising a housing and at least one mounting clip. The housing comprises an electrical connection region engageable in an electrical receptacle. The mounting clip is pivotable from a first position, where an end region of the mounting clip does not extend beyond a periphery of the housing, to a second position, where the end region extends beyond the housing periphery. Also, a lighting device, comprising a housing, a trim element and at least one mounting clip. The mounting clip is pivotable, such that if the mounting clip is in a second position and then the trim element is rotated, the mounting clip will pivot to a third position, where the mounting clip engages the housing such that the trim element is biased toward a ceiling or other structure in which the lighting device is mounted. Also, methods of installing housings and / or trim elements.

A lighting device comprising at least one solid state light emitter and at least one luminescent element spaced from the light emitter, a surface of the luminescent element being at least twice as large as the illumination surface of the light emitter. Also, a lighting device comprising at least one solid state light emitter and at least one luminescent element spaced from the light emitter, a surface of the luminescent element surface being at least twice as large as and substantially parallel to the illumination surface of the light emitter. Also, a lighting device comprising at least one solid state light emitter and at least one luminescent element spaced from the light emitter, a surface area of a projection of the luminescent element being at least twice as large as a surface area of a projection of the light emitter.

A lighting device comprising at least one solid state light emitter and at least one lumiphor. If each solid state light emitter is illuminated and each lumiphor is excited, a mixture of light emitted has x, y color coordinates within an area defined by the coordinates 0.32, 0.40; 0.36, 0,48; 0.43, 0.45; 0.42, 0.42; and 0.36, 0.38. The lumiphor(s) comprises phosphor particles, in the range of from 3 to 7 micrometers (or 5-15, 10-20, or 15-25 micrometers), or having a mean particle size of 5, 10, 15, 20 micrometers. Also, a lighting device comprising at least one emitter and at least one lumiphor in which the lumiphor comprises phosphor particles having sizes as mentioned above, where the lighting device has an efficacy of at least 60 (or 70, or 80) lumens per watt.

There is provided a lighting device which emits light with an efficacy of at least 60 lumens per watt. The lighting device comprises at least one solid state light emitter, e.g., one or more light emitting diodes, and optionally further includes one or more lumiphor. In some embodiments, the output light is of a brightness of at least 300 lumens. In some embodiments, the output light has a CRI Ra of at least 90. Also, a method of lighting, comprising supplying electricity to a lighting device which emits light with an efficacy of at least 60 lumens per watt.

A circuit for a lighting device comprises a sub-circuit which comprises a series current regulator and a group of solid state light emitters. The current regulator and the solid state light emitters are arranged in series. In some embodiments, the circuit further comprises a fan electrically connected in series in the sub-circuit. In some embodiments, the circuit further comprises a second sub-circuit which comprises a second series current regulator and a second group of solid state light emitters, the first sub-circuit and the second sub-circuit being arranged in parallel. In some embodiments, an anode of the series current regulator is electrically connected to a cathode of one of the solid state light emitters. Also, methods of lighting wherein a sum of voltage drops across light emitters and a current regulator is in the range of from 1.2 to 1.6 times the line voltage.

A lighting device comprising a light emitter chip, a reflective cup and a lumiphor positioned between the chip and the cup. Also, a lighting device comprising a light emitter chip, a wire bonded to a first surface of the chip and a lumiphor which faces a second surface of the chip. Also, a lighting device comprising a light emitter chip, and a lumiphor, a first surface of the chip facing a first region of the lumiphor, a second surface of the chip facing a second region of the lumiphor. Also, a lighting device comprising a light emitter chip and first and second lumiphors, a first surface of the chip facing the second lumiphor, a second surface of the chip facing the first lumiphor. Also, methods of making lighting devices.

A lighting device comprises groups of solid state light emitters, a sensor and circuitry. If the emitters are illuminated, the sensor is exposed to combined light from the groups, and senses only a portion of the combined light. The circuitry adjusts current applied to at least one of the emitters based on an intensity of the light sensed. Also, a device comprising emitters, a circuit board and a sensor, at least one of the emitters being positioned on the first circuit board and the sensor being spaced from the circuit board. Also, a lighting device comprising emitters, a sensor, and circuitry which adjusts current applied an emitters based on detection by the first sensor, the circuitry comprising a differential amplifier circuit. Also, a lighting device, comprising light emitters and circuitry which adjusts current applied to only some of the emitters based on ambient temperature. Also, methods of lighting.

A lighting device comprising at least one solid state light emitter and at least one luminescent element spaced from the light emitter, a surface of the luminescent element being at least twice as large as the illumination surface of the light emitter. Also, a lighting device comprising at least one solid state light emitter and at least one luminescent element spaced from the light emitter, a surface of the luminescent element surface being at least twice as large as and substantially parallel to the illumination surface of the light emitter. Also, a lighting device comprising at least one solid state light emitter and at least one luminescent element spaced from the light emitter, a surface area of a projection of the luminescent element being at least twice as large as a surface area of a projection of the light emitter.

A semiconductor lighting device includes at least one semiconductor light emitter and at least one wavelength converting element, physically separated from the light emitter. At least one wavelength converting element has a reflective member underneath it, so that both primary light and converted light from the wavelength converting layer become a forward transferred light preventing from backscattering loss into the light emitter. The reflective member may be a thermal conductive element to effectively remove the heat from the wavelength converting element. Accordingly, the remote wavelength conversion on a reflective surface improves the thermal stability of the wavelength conversion material and prevents backscattering loss to produce a higher radiance result from the device.

A lighting device comprises a solid state light emitter, first and second electrodes connected to the emitter, an encapsulant region comprising a silicone compound and a supporting region. The encapsulant region extends to an external surface of the lighting device. At least a portion of the first electrode is surrounded by the supporting region. The encapsulant region and the supporting region together define an outer surface which substantially encompasses the emitter. A method of making a lighting device, comprises electrically connecting first and second electrodes to an emitter; inserting the emitter into mold cavity; inserting an encapsulant composition comprising a one silicone compound; and then inserting a second composition to substantially surround at least a portion of the first electrode.

A lighting device, comprising at least first and second current regulators, each switchable among two settings, and at least first and second groups of solid state light emitters. If the first regulator is in a first setting, a first current is supplied to the first group and a second current is supplied to the second group, and if the first regulator is in a second setting, a third current is supplied to the first group and a fourth current is supplied to the second group. In some embodiments, a ratio of the third current divided by the first current differ's from a ratio of the fourth current divided by the second current by at least 5 %. Also, a method comprising substantially simultaneously adjusting current supplied to a first group, and adjusting a current supplied to a second group.

The present invention relates to a lighting device using an LED. One embodiment of the invention provides a lamp-shaped LED lighting device that can replace a known lighting device. The lamp-shaped LED lighting device promptly emits the heat generated by an LED element, which influences the optical output and the lifespan of the LED lighting device, through a lamp-shaped frame with a heat-ventilation structure that facilitates air circulation. In addition, the lamp-shaped LED lighting device prevents glare from an LED light source by using a lateral reflecting member, a diffusion lens and a diffusion cover and diffuses the light from the light source widely without optical attenuation. Another embodiment of the invention provides a tube and panel-shaped LED lighting devices that can be replaced with a previous tube-shaped fluorescent light and a panel-shaped lighting device. The tube and panel-shaped LED lighting devices rapidly emit the heat generated by an LED element, which influences the optical output and the life span of the LED lighting device, through a tube and panel-shaped frame with a heat-sink structure. In addition, the tube and panel-shaped LED lighting devices prevent glare from the LED light source by optically arranging a curved reflecting plate, a diffusion plate and a diffusion window which include a diffusion lens at the upper portion of the LED element. Furthermore the tube and panel-shaped LED lighting devices diffuse the light from the LED light source widely without optical attenuation.

A lighting device, comprising at least one solid state light emitter and one (or more) optical device(s) which (each) comprises at least first, second and third optical structures, first and second surfaces of the second structure being in contact with a surface of the first structure and a surface of the third structure, respectively. The third structure has at least one optical feature. The light emitter is positioned, the optical feature is positioned, and the regions of the structures have indices of refraction, such that if the light emitter is illuminated, at least a portion of the emitted light will enter into the second optical device structure and exit from the optical feature on the third structure. Also, a method of lighting comprising illuminating a light emitter in such a device.

A lighting device comprising first, second and third groups of solid state light emitters, and first and second groups of lumiphors. A mixture of light emitted from the first group of emitters and the first group of lumiphors has x,y color coordinates within an area defined by coordinates (0.36,0.48), (0.43,0.45), (0.5125,0.4866), and (0.4087,0.5896) (or (0.41,0.455), (0.36,0.48), (0.4087,0.5896), and (0.4788,0.5202)). A mixture of light emitted from the second group of emitters and the second group of lumiphors is within an area defined by (0.32,0.40), (0.36,0.38), (0.30,0.26), and (0.25,0.29). A mixture of light from the first and second groups of emitters and the first and second groups of lumiphors is within an area defined by (0.32,0.40), (0.36,0.48), (0.43,0.45), (0.42,0.42), and (0.36,0.38) (or (0.32,0.40), (0.36,0.38), (0.41,0.455), and (0.36,0.48)). A mixture of light from all of these emitters and lumiphors is within ten MacAdam ellipses of the blackbody locus. Also, methods of lighting.

First, second and third lighting devices each comprise a thermal conduction element, solid state light emitters and a reflective element. In the second device, the conduction element defines an opening; and the emitters and reflective element are mounted on a first side of the conduction element. In the third device, the conduction element defines an opening; a first portion of a first side of the conduction element is in contact with a contact region of a construction surface; and the emitters and reflective element are mounted on the first side. A fourth device comprises a conduction element and emitters; a first portion of a first side of the conduction element is in contact with a contact region of a construction surface; the emitters are mounted on a second portion of the first side of the conduction element; and a second side of the conduction element is exposed to ambient air.

An LED lighting device comprises: a thermally conducting body having an at least one opening that connects with a cavity within the body and a plurality of LEDs mounted in thermal communication with a face of the body and positioned around the opening. One or more passages pass through the body from the cavity to an outer surface of the body and are configured such that in operation air moves through the cavity by thermal convection thereby to provide cooling of the body. Each passage is configured in a direction that extends in a direction at an angle of about 45° to a line that is parallel with the axis of the body toward the outer surface of the body away from the face. The body can be configured such that its outer surface has a form factor resembling an incandescent light bulb or halogen reflector lamp.