Patents Assigned to Light Corp.
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Patent number: 8226266Abstract: An LED bulb uses an LED strip suspended between two lead frames of a stem as a light source to provide uniform illumination with wider angles. The lead frames of the stem provide an improved structural stability to the LED strip while maintaining a reliable electrical connection between the components of the stem and the LED strip. The utilization of both top-emitting and side-emitting LEDs on the LED strip further allows lights emitted in directions substantially parallel and perpendicular to the LED strip to cover a wide angle of illumination from the LED bulb.Type: GrantFiled: March 25, 2010Date of Patent: July 24, 2012Assignee: Liquidleds Lighting Corp.Inventor: Kun-Yuan Chiang
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Patent number: 8198825Abstract: An illuminating module is capable of compensating current. The illuminating module can tune the light with a light modulating circuit. The illuminating module includes an illuminating unit and a compensating circuit. The illuminating unit includes a power source, a load impedance, and a level unit. The level unit has a level potential which changes with the light modulating circuit. The compensating circuit includes a first resistor, a first switch, and a judging unit. The first resistor is coupled to the power source. The first switch is coupled to the first resistor and the illuminating unit. The judging unit is coupled to the level unit and the first switch. When the level potential is less than a predetermined potential, the judging unit makes the first switch to be at the conducting state to parallel connect the first resistor and the load impedance.Type: GrantFiled: May 26, 2010Date of Patent: June 12, 2012Assignee: Darfon Lighting Corp.Inventors: Lien-Jen Ho, Chun-Hao Yu
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Patent number: 8193711Abstract: A metal halide lamp is comprised of an airtight tube having a discharge section in which a discharge space is formed; a discharge medium which is enclosed in the discharge space, contains metal halide exhibiting a molar ratio of sodium halide to scandium halide of 1.5 or below and 8 atm or higher of xenon but does not substantially contain mercury; and a pair of electrodes with their tip ends arranged to oppose to each other in the discharge space, wherein halogen atoms bonded to metal in the metal halide mostly consist of iodine and bromine atoms, and a ratio of the bromine atoms is in a range of 10 to 50% and the total amount of the metal halide enclosed is 0.02 mg/?l or less.Type: GrantFiled: July 25, 2007Date of Patent: June 5, 2012Assignee: Harison Toshiba Lighting Corp.Inventors: Makoto Deguchi, Kousuke Ueda
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Patent number: 8167677Abstract: A method of assembling an airtight LED light bulb has the steps of: connecting a stem device with an LED device, drying the LED device, connecting the stem device with a bulb envelope, extracting air in the bulb envelope via a pipe, filling the bulb envelope with nitrogen or inert gas via the pipe, sealing an opening of the pipe which is located outside the bulb envelope to make the bulb envelope completely airtight and connecting a cap with the bulb envelope. Because the bulb envelope is airtight, moisture in the environment can not damage the LED device, and the steps of extracting air in the bulb envelope via the pipe and filling the bulb envelope with nitrogen or inert gas via the pipe are feasible. Consequently, the LED device will not easily be oxidized or dampened, so the lifespan of the airtight LED light bulb can be prolonged.Type: GrantFiled: August 10, 2010Date of Patent: May 1, 2012Assignee: Liquidleds Lighting Corp.Inventor: David Huang
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Patent number: 8115370Abstract: A bending LED bulb has a transparent bending tube and a flexible LED strip. The flexible LED strip has a flexible printed circuit board (PCB) and a plurality of LEDs mounted on the flexible PCB and is inserted and fixed in the transparent bending tube. As the LEDs are sequentially mounted on the flexible PCB, the LEDs are adjacent to a wall of the transparent bending tube, and are equally spaced. Accordingly, a lumen value of the bending LED bulb can be raised, and heat generated by the LEDs can be dissipated out through the wall of the transparent bending tube to avoid high temperature arising from accumulation of the waste heat.Type: GrantFiled: August 11, 2010Date of Patent: February 14, 2012Assignee: Liquidleds Lighting Corp.Inventor: David Huang
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Patent number: 8083371Abstract: An illumination device includes a plurality of housings installed on a lamp holder, and each housing being arranged at the bottom of the lamp holder and tilted in a specific direction towards an exit aperture and having a light emitting diode device installed on each housing and opposite to two sidewalls on both sides of the inclined direction, and a reflection cover installed between adjacent housings, and each reflection cover having a plurality of first reflection surfaces and second reflection surfaces extended into each housing and towards the exterior of the housing. With the effect of the first and second reflection surfaces, the light source can be projected towards the exterior of the lamp holder effectively to increases the overall light projection range of the illumination device.Type: GrantFiled: December 18, 2009Date of Patent: December 27, 2011Assignee: Trend Lighting Corp.Inventors: Chang-Yao Lin, Jyh-Lih Wang
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Patent number: 8042970Abstract: An LED illuminator has a seat and multiple LED modules mounted on the seat. The seat has multiple chambers, each of which has two opposite sidewalls, a bottom, two through holes and an opening. The two through holes are respectively defined on the sidewalls and the opening is defined the bottom. The LED modules are respectively mounted on the sidewalls of the chambers on the seat and standing on the seat at an inclined angle to allow lights pass through the openings of the chambers. Therefore, each chamber has two light sources from two opposite sidewalls and the lights of the two lights source pass through the opening of the chamber. The LED illuminator provides a wide illuminating angle.Type: GrantFiled: May 21, 2009Date of Patent: October 25, 2011Assignee: Trend Lighting Corp.Inventors: Jyh-Lih Wang, Hui-Hsin Kao, Jerry Lin
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Publication number: 20110216554Abstract: An embodiment of the invention provides a light emitting device in which a semiconductor laser diode is used as a light source to efficiently obtain visible light having high uniformity of a luminance distribution. The light emitting device has a semiconductor laser diode that emits a laser beam. And the device has a light guide component that includes an upper surface, a lower surface, two side faces opposite each other, and two end faces opposite each other, the laser beam being incident from a first end face of the light guide component, the light guide component having indentation in the lower surface, the laser beam being reflected by the lower surface and emitted in an upper surface direction. The light emitting device also has a luminous component that is provided on an upper surface side of the light guide component and absorbs the laser beam emitted from the light guide component and emits visible light.Type: ApplicationFiled: September 7, 2010Publication date: September 8, 2011Applicants: Kabushiki Kaisha Toshiba, Harison Toshiba Lighting Corp.Inventors: Yasushi HATTORI, Masaki Tohyama, Shinji Saito, Shinya Nunoue, Rei Hashimoto, Jongil Hwang, Maki Sugai, Takanobu Ueno, Junichi Kinoshita, Misaki Ueno
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Patent number: 7997750Abstract: A high power LED lamp comprises a container having a cavity to fill with a liquid, a light source module for providing a high power LED source light to penetrate through the liquid, and an axial thermal conductor having a first portion nearby the light source module and a second portion extending in the liquid along an axial direction of the cavity to far away from the light source module to evenly transfer heat from the light source module through the liquid to the container.Type: GrantFiled: July 8, 2009Date of Patent: August 16, 2011Assignee: Liquidleds Lighting Corp.Inventor: Kun-Yuan Chiang
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Patent number: 7956547Abstract: A dielectric barrier discharge lamp (14) has an inside electrode (142) in a tube axis direction within the airtight container (141), which has ultraviolet transmission properties and a long tube shape, and an outside electrode (143) having a semicircular shape arranged outside of the airtight container (141) in close contact with it. Besides, an excimer-forming gas is sealed in the airtight container (141). AC voltage supplied from the power source (11) is converted into DC voltage through a converter (12) and outputted. A high-frequency wave is generated by an inverter (13) based on the DC voltage supplied from the converter (12), and a dielectric barrier discharge is induced in the dielectric barrier discharge lamp (14) to irradiate ultraviolet rays. The converter (12) is configured by connecting in series the outputs of DC power sources (121), (122).Type: GrantFiled: December 18, 2008Date of Patent: June 7, 2011Assignee: Harison Toshiba Lighting Corp.Inventors: Syouhei Maeda, Toshiya Suzuki, Akiko Kuraya
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Patent number: 7926969Abstract: A method for controlling the brightness and increasing uniformity of light generated by Lambertian surface sources has the steps of providing multiple pairs of Lambertian surface sources to produce light emitting on a target surface, each pair of Lambertian surface sources consisting of two Lambertian surface sources; rotating the two Lambertian surface sources of the same pair by a same rotation angle relative to the target surface but in opposite directions; calculating a maximum illumination and a minimum illumination corresponding to the rotation angle; determining whether a ratio of the maximum illumination to the minimum illumination is lower than a threshold; and fixing the Lambertian surface sources at the rotation angle if the ratio is lower than the threshold.Type: GrantFiled: March 9, 2009Date of Patent: April 19, 2011Assignee: Trend Lighting Corp.Inventors: Chin-Tin Hsiao, Jyh-Lih Wang, Hui-Hsin Kao
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Patent number: 7922359Abstract: An LED lamp includes a container having a cavity containing a liquid, a light source module with a high power LED source to emit light through the liquid, and an thermal conductor having a first portion proximate the light source module and a second opposite portion extending in an axial direction of the cavity in front of the light source module.Type: GrantFiled: July 17, 2006Date of Patent: April 12, 2011Assignee: Liquidleds Lighting Corp.Inventor: Kun-Yuan Chiang
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Patent number: 7878697Abstract: A high power LED lamp comprises a container having a cavity to fill with a liquid, a light source module for providing a high power LED source light to penetrate through the liquid, and an axial thermal conductor having a first portion nearby the light source module and a second portion extending in the liquid along an axial direction of the cavity to far away from the light source module to evenly transfer heat from the light source module through the liquid to the container.Type: GrantFiled: July 8, 2009Date of Patent: February 1, 2011Assignee: Liquidleds Lighting Corp.Inventor: Kun-Yuan Chiang
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Publication number: 20110007506Abstract: A thin, linear or planar lighting apparatus with a hollow cavity having a uniform luminance distribution over a lighting surface. The lighting apparatus includes a light source configured to emit light having a narrow-angle light intensity distribution characteristic, a diffuser plate disposed in a position spaced apart by a predetermined distance from an optical axis of the light emitted from the light source, and a reflection member. The reflection member includes a level surface substantially parallel to the optical axis and an inclined surface inclined to the optical axis at a predetermined angle so that a uniform illuminance distribution over a lighting surface is achieved. A hollow region is formed between the diffuser plate and the reflection member, and the diffuser plate is illuminated with light reflected off the level surface and the inclined surface via the hollow region.Type: ApplicationFiled: January 27, 2009Publication date: January 13, 2011Applicant: Harison Toshiba Lighting Corp.Inventor: Junichi Kinoshita
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Publication number: 20100270921Abstract: A discharge lamp includes an airtight tube including a light-emitting unit in which a space is formed and seal portions formed at least on one end of the light-emitting unit, a discharge medium including a metal halide and a rare gas sealed in the light-emitting unit, a metal foil sealed into the seal portion, and a pair of electrodes one ends of which are overlapped and connected to the metal foil and the other ends of which are provided such that they are led into the space of the light-emitting unit and arranged in opposition to each other. A concavity is formed on at least a portion of the back surface side of the metal foil on which the electrode is overlapped, and a compression distortion is formed on the seal portion in the vicinity of the concavity.Type: ApplicationFiled: July 4, 2008Publication date: October 28, 2010Applicant: Harison Toshiba Lighting Corp.Inventors: Osamu Shirakawa, Keisuke Nakazato
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Publication number: 20100259937Abstract: A candle lighting type reflective lampshade comprises a lampshade main body being made with a reverse cone body on the upper half thereof and a cover layer on the inner cone surface thereof, wherein the cone surface forming a pair of symmetrical parabolic curves includes a ring type aperture on the top thereof thereby allowing the underside light source to achieve secondary full reflection; the base of lampshade main body comprises a plurality of inclined surfaces being ringly peripherally installed thereon and being installed with a plurality of lamp source bases below the inclined surfaces, while the light source is effectively controlled by the lamp source base to beam the light on the cone top portion of the reverse cone body so as to fully reflect each light beam and to achieve uniform dispersion of the light source.Type: ApplicationFiled: April 8, 2009Publication date: October 14, 2010Applicant: High Power Lighting Corp.Inventors: Ming-Chang WU, Chih-Chun Wen, Chih-Hung Wei
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Patent number: 7812624Abstract: A testing method for a LED module and its associated elements includes the steps of: providing a LED module on which a plurality of light-emitting diodes is arranged; providing an integration detector, and mounting it above the LED module; providing an electrically conducting means having a plurality of conductive terminals and an electronic signal connector electrically connected to the conductive terminals; electrically connecting the light-emitting diodes with the conductive terminals; using the electronic signal connector to change the ON/OFF states of the electrical signals of the light-emitting diodes and the conductive terminals; and detecting the photo-electrical properties of each light-emitting diode via the integration detector.Type: GrantFiled: May 26, 2009Date of Patent: October 12, 2010Assignee: High Power Lighting Corp.Inventors: Chih-Hung Wei, Ming-Chang Wu, Chih-Yang Hsu, Chih-Lung Wu, Ding-Yuan Jheng
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Publication number: 20100072892Abstract: A halogen lamp including a glass bulb, a filament inserted inside the bulb, a pair of metal foils, and a pair of outer leads. Each metal foil has one end welded to the filament and the other end welded to the outer lead. The metal foils are contained in glass sleeves and they are collectively inserted inside the bulb. The bulb is softened by heating and shrinks because its inside pressure is reduced to seal the metal foils therein. Since the amount of glass of each sealed portion is larger than the other portions of the bulb by the amount of the sleeve, the shape of the sealed portion is stabilized.Type: ApplicationFiled: September 21, 2007Publication date: March 25, 2010Applicant: Harison Toshiba Lighting CorpInventors: Akio Watanabe, Tetsuo Ootani, Seiji Sakamoto, Minoru Nishizono
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Publication number: 20100039824Abstract: A lighting device includes a secondary lamp casing having an inner ring portion connected to a peripheral portion of a primary lamp casing, an outer ring portion surrounding the inner ring portion, and an annular reflector wall extending between the ring portions. The reflector wall has at least one source mounting section having a reflecting surface with angularly spaced apart ends, an intermediate part between the spaced apart ends, and two sets of curved surface segments. The curved surface segments in each set are interconnected in sequence from the intermediate part to a respective one of the spaced apart ends, and are different paraboloid segments that have coaxial focal axes. A primary light source is mounted to and extends into the primary lamp casing. A secondary light source is disposed at the intermediate part of the source mounting section.Type: ApplicationFiled: August 15, 2008Publication date: February 18, 2010Applicant: Maxzone Vehicle Lighting Corp.Inventor: Yu-Chieh Wang
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Patent number: D641895Type: GrantFiled: February 8, 2011Date of Patent: July 19, 2011Assignee: Liquidleds Lighting Corp.Inventor: David Huang