Patents Assigned to Ledtech Electronics Corp.
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Patent number: 8388171Abstract: An LED lamp tube with improved sealing and cooling performance includes a plastic tube shell, an LED lamp strip, a metal casing and two end caps. The plastic tube shell is elongate and includes a light condensing structure and a light reflection structure integrally formed by extrusion and an installation chamber formed between the light condensing structure and the light reflection structure. The LED lamp strip is held in the installation chamber and at one side of the light reflection structure. The metal casing is coupled on the outer side of the light reflection structure. Each of the end caps is coupled on each of two ends of the plastic tube shell, thus can achieve IP67 waterproof and dustproof level, and also can resolve cooling problem of the lamp tube.Type: GrantFiled: October 18, 2011Date of Patent: March 5, 2013Assignee: Ledtech Electronics Corp.Inventors: Chienchen Tung, Qing Ma, Kegang Yue, Deliang Xiao, Xianhua Zhao
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Publication number: 20110280020Abstract: An illumination structure for generating specific directional light sources includes a substrate unit, a light-emitting unit and a lens unit. The substrate unit has at least one substrate body. The light-emitting unit has a plurality of light-emitting elements disposed on and electrically connected to the substrate body. The lens unit has a plurality of lens modules sequentially abutted against each other and disposed on the substrate body. Each lens module has a lens frame disposed on the substrate body and a plurality of protruding lens elements separated from each other by a predetermined distance and integrally formed on the lens frame, the protruding lens elements respectively correspond to the light-emitting elements, and each protruding lens element has at least one concave portion formed on a top side thereof and above each light-emitting element and at least two protrusion portions respectively integrally connected to two opposite sides of the concave portion.Type: ApplicationFiled: November 2, 2010Publication date: November 17, 2011Applicant: LEDTECH ELECTRONICS CORP.Inventors: WEI-CHUN CHEN, PEI-HUNG MENG, FANG-PO WANG
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Publication number: 20110199768Abstract: An assembled LED lamp strip structure for generating continuous lighting includes a substrate unit, a light-emitting unit and a packaging unit. The substrate unit has a plurality of substrate bodies sequentially and electrically connected to form a strip shape. The light-emitting unit has a plurality of linear light-emitting arrays respectively disposed on and electrically connected to the substrate bodies. Each linear light-emitting array has a plurality of light-emitting elements, and light beams generated by each light-emitting element are unobstructively projected outward. The packaging unit has a plurality of packaging bodies respectively disposed on the substrate bodies and respectively covering the linear light-emitting arrays, and the length of each packaging body is substantially the same as the length of each substrate body.Type: ApplicationFiled: November 2, 2010Publication date: August 18, 2011Applicant: LEDTECH ELECTRONICS CORP.Inventors: JUI-LUN KUO, YAO-I WANG, FANG-PO WANG
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Publication number: 20110103053Abstract: The LED lighting device includes a tubular housing, a light emitting unit, and a reflector. The tubular housing has an accommodating space. The light emitting unit is disposed in the accommodating space and has a plurality of light emitting diodes. The reflector is disposed in the accommodating space and has a wing-shaped reflecting portion. The reflecting portion faces the light emitting unit for reflecting the light source emitted from the light emitting diodes to the lateral directions of the tubular housing. As a result, the light source can be converted to a specific direction. Compare to the fluorescent lamps, the present invention has higher illumination efficiency and a longer operating life. The volume of the lamps and the cost are saved.Type: ApplicationFiled: April 21, 2010Publication date: May 5, 2011Applicant: LEDTECH ELECTRONICS CORP.Inventors: Wei-Chun Chen, Fang-Po Wang, Yao-I Wang
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Patent number: 7926985Abstract: A custom assembly light-emitting module includes a base unit, a light-emitting unit and a lens unit. The base unit has a heat-dissipating base and two first retaining structures extending upwards from two opposite lateral sides of the heat-dissipating base. The light-emitting unit is detachably disposed on the heat-dissipating base. The lens unit has a lens and two second retaining structures formed on two opposite lateral sides of the lens, wherein the lens unit is detachably disposed over the light-emitting unit by matching the two first retaining structures and the two second retaining structures. Hence, the base unit, the light-emitting unit and the lens unit can be replaced according to the user's different requirements.Type: GrantFiled: February 1, 2010Date of Patent: April 19, 2011Assignee: Ledtech Electronics Corp.Inventors: Chien-Chen Teng, Fang-Po Wang, Wen-Chieh Chang Chien
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Patent number: 7887226Abstract: An LED lamp tube is disclosed to include a tube that admits light, circuit boards respectively mounted inside the tube, each circuit board carrying an array of LEDs, two end caps respectively capped on the ends of the tube to hold the circuit boards inside the tube and connectable to connectors of a conventional fluorescent bulb holder to secure the tube to the conventional fluorescent bulb holder, and a power cord extending from the circuit boards out of the tube for connection to power supply to obtain the necessary working voltage for the LEDs.Type: GrantFiled: July 22, 2008Date of Patent: February 15, 2011Assignee: Ledtech Electronics Corp.Inventors: Ming-Chung Huang, Yu-Yang Liu, Fu-Hsung Ou, Ying-Hsuan Chen
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Patent number: 7806557Abstract: An assembly of a lighting unit and a receptacle unit includes at least one receptacle unit and at least one lighting unit. The receptacle unit has an outer housing provided with at least one first connection portion and at least one second connection portion electrically connected to the first connection portion in the outer housing. The lighting unit is electrically connected to one of the first and second connection portions of the receptacle unit, so that the lighting unit and the receptacle unit can be independently rotated in relation to each other along a connection axis thereof.Type: GrantFiled: November 28, 2007Date of Patent: October 5, 2010Assignee: Ledtech Electronics Corp.Inventors: Yen-Fu Liu, Chien-Hung Tsai, Hsuan-Hui Chen
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Publication number: 20100219441Abstract: An LED package structure and an LED packaging method are disclosed. The LED package structure includes a substrate, an LED unit and a transparent holding wall. The LED unit is electrically connected and located on the surface of the substrate. The transparent holding wall that corresponds to the LED unit is formed on the surface of the substrate, and has a receiving space. The LED unit is received in the receiving space. By utilizing the transparent holding wall, the colloid is controllably received in the receiving space and uniformly spread on the surface of the LED unit and around the LED unit. Thereby, the quantity of the colloid is easily controlled, and the LED package structure has a wide lighting angle due to the light emitted from the LED unit can pass through the transparent holding wall.Type: ApplicationFiled: May 17, 2010Publication date: September 2, 2010Applicant: LEDTECH ELECTRONICS CORP.Inventors: JUI-LUN KUO, YAO-I WANG, FANG-PO WANG
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Patent number: 7772603Abstract: An array type light-emitting device with high color rendering index includes: a substrate, an array type light-emitting module, a plurality of wavelength-converting layers, and a plurality of transparent layers. The array type light-emitting module is composed of a plurality of light-emitting chip rows, and each light-emitting chip row has a plurality of first light-emitting chips and at least one second light-emitting chip. The wavelength-converting layers are respectively covered on the first light-emitting chips. Therefore, a part of visible light emitted by the first light-emitting chips is absorbed and converted into visible light with another emission peak wavelength range via the wavelength-converting layers, and the visible light with another emission peak wavelength range mixes with projecting light projected from the second light-emitting chips to make the array type light-emitting device generate mixed white light with a color rendering index of between 90 and 95.Type: GrantFiled: December 17, 2007Date of Patent: August 10, 2010Assignee: Ledtech Electronics Corp.Inventors: Chih-Liang Su, Hsin-Chun Liu, Fang-Po Wang
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Publication number: 20100128485Abstract: A custom assembly light-emitting module includes a base unit, a light-emitting unit and a lens unit. The base unit has a heat-dissipating base and two first retaining structures extending upwards from two opposite lateral sides of the heat-dissipating base. The light-emitting unit is detachably disposed on the heat-dissipating base. The lens unit has a lens and two second retaining structures formed on two opposite lateral sides of the lens, wherein the lens unit is detachably disposed over the light-emitting unit by matching the two first retaining structures and the two second retaining structures. Hence, the base unit, the light-emitting unit and the lens unit can be replaced according to the user's different requirements.Type: ApplicationFiled: February 1, 2010Publication date: May 27, 2010Applicant: LEDTECH ELECTRONICS CORP.Inventors: CHIEN-CHEN TENG, FANG-PO WANG, WEN-CHIEH CHANG CHIEN
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Patent number: 7699490Abstract: A light-emitting structure for generating an annular illumination effect includes a light-guiding module, a cover module, and a first light-emitting module. The light-guiding module has a hollow light-guiding body and a reflecting layer formed on an inner surface of the hollow light-guiding body. The cover module has a first cover body disposed on one end side of the hollow light-guiding body and a second cover body disposed on the other opposite end side of the hollow light-guiding body. The first light-emitting module has a plurality of first light-emitting elements disposed between the hollow light-guiding body and the first cover body. Therefore, first light beams generated by the first light-emitting elements are projected onto the hollow light-guiding body, and the first light beams are guided by the hollow light-guiding body and are reflected by the reflecting layer in order to make the hollow light-guiding body generate the annular illumination effect.Type: GrantFiled: November 28, 2008Date of Patent: April 20, 2010Assignees: Ledtech Electronics Corp., Energyled CorporationInventors: Chien-Hung Tsai, Yao-I Wang, Pei-Hung Meng, Wei-Jen Hsu
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Patent number: 7682039Abstract: A male terminal cap and a female terminal cap are mounted on the two ends of a strip light shade to form an extensible strip light shade. Electrical contacts are formed in the terminal caps for electrical coupling when two light shades are connected through mechanical coupling of the terminal caps.Type: GrantFiled: May 2, 2007Date of Patent: March 23, 2010Assignee: Ledtech Electronics Corp.Inventors: Shu Shoung Kuo, Yen Fu Liu, Yu Yang Liu
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Patent number: 7655954Abstract: An array type light-emitting module includes a blue, a red, a green, a yellow and an amber light-emitting chip sets. Wavelength-converting layer set covers the blue light-emitting chip set. Transparent layer sets cover the red, green, yellow, and amber light-emitting chip sets. A portion of the visible light emitted by the blue light-emitting chip set is converted into visible light with another emission peak wavelength range via the wavelength-converting layer set. The converted visible light mixes with light projected from the red, the green, the yellow and the amber light-emitting chip sets to generate white light with a color rendering index ranging between 90 and 96.Type: GrantFiled: December 17, 2007Date of Patent: February 2, 2010Assignee: Ledtech Electronics Corp.Inventors: Chih-Liang Su, Hsin-Chun Liu, Fang-Po Wang
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Patent number: 7600907Abstract: An LED lighting device includes a light pipe and a support portion. The light pipe includes a light emitting diode module inside and two first fastening portions on an outer wall thereof. A support portion secures the light pipe and provides a rotatable function for the light pipe. The support portion further includes a clamp and a base member. A clamp has two second fastening portions at opposite sides thereof. The second fastening portions engage with the first fastening portions. The clamp further includes a strip hollow slot. A base member includes a pair of positioning portions for holding an outer wall of the clamp, wherein a fastener is led through the strip hollow slot and fastened on the base member. The clamp slides relative to the base member along the strip hollow slot such that the light pipe rotates relative to the base member.Type: GrantFiled: September 21, 2007Date of Patent: October 13, 2009Assignee: Ledtech Electronics Corp.Inventors: Yen-Fu Liu, Hung-Hsin Lee
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Patent number: 7556396Abstract: A lamp assembly includes at least one electrical socket and a tube. The electrical socket includes an insulating body and two connectors set in the insulating body. The insulating body has an insertion hole. The two connectors have a contact plate exposed in the insertion hole. The tube has two terminal lugs disposed at least at one end thereof. The end of the tube and the two terminal lugs are inserted and installed in the insertion hole of the electrical socket. The terminal lugs electrically contact the contact plate of the connector. The end of the tube installed in the insertion hole is rotatable, the lighting angle can be adjusted. Thus, the tube can be electrically connected with the electrical socket quickly, the tube is lit instantly, and the tube can be rotated to adjust the lighting angle.Type: GrantFiled: November 8, 2007Date of Patent: July 7, 2009Assignee: Ledtech Electronics Corp.Inventors: Shu-Hsiung Kuo, Yen-Fu Liu, Yu-Yang Liu
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Publication number: 20090135602Abstract: An assembly of a lighting unit and a receptacle unit includes at least one receptacle unit and at least one lighting unit. The receptacle unit has an outer housing provided with at least one first connection portion and at least one second connection portion electrically connected to the first connection portion in the outer housing. The lighting unit is electrically connected to one of the first and second connection portions of the receptacle unit, so that the lighting unit and the receptacle unit can be independently rotated in relation to each other along a connection axis thereof.Type: ApplicationFiled: November 28, 2007Publication date: May 28, 2009Applicant: LEDTECH ELECTRONICS CORP.Inventors: Yen-Fu Liu, Chien-Hung Tsai, Hsuan-Hui Chen
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Publication number: 20090040782Abstract: An LED lighting device includes a light pipe and a support portion. The light pipe includes a light emitting diode module inside and two first fastening portions on an outer wall thereof. A support portion secures the light pipe and provides a rotatable function for the light pipe. The support portion further includes a clamp and a base member. A clamp has two second fastening portions at opposite sides thereof. The second fastening portions engage with the first fastening portions. The clamp further includes a strip hollow slot. A base member includes a pair of positioning portions for holding an outer wall of the clamp, wherein a fastener is led through the strip hollow slot and fastened on the base member. The clamp slides relative to the base member along the strip hollow slot such that the light pipe rotates relative to the base member.Type: ApplicationFiled: September 21, 2007Publication date: February 12, 2009Applicant: LEDTECH ELECTRONICS CORP.Inventors: Yen-Fu Liu, Hung-Hsin Lee
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Patent number: 7441922Abstract: A LED lamp tube is disclosed to include a tube that admits light, circuit boards respectively mounted inside the tube, each circuit board carrying an array of LEDs, two end caps respectively capped on the ends of the tube to hold the circuit boards inside the tube and connectable to connectors of a conventional fluorescent bulb holder to secure the tube to the conventional fluorescent bulb holder, and a power cord extending from the circuit boards out of the tube for connection to power supply to obtain the necessary working voltage for the LEDs.Type: GrantFiled: December 14, 2005Date of Patent: October 28, 2008Assignee: Ledtech Electronics Corp.Inventors: Ming-Chung Huang, Yu-Yang Liu, Fu-Hsung Ou, Ying-Hsuan Chen
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Patent number: D583496Type: GrantFiled: March 28, 2007Date of Patent: December 23, 2008Assignee: Ledtech Electronics Corp.Inventors: Shu Shoung Kuo, Yen Fu Liu, Yu Yang Liu
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Patent number: D662629Type: GrantFiled: September 16, 2011Date of Patent: June 26, 2012Assignee: LEDTECH Electronics Corp.Inventors: Chienchen Tung, Qing Ma, Kegang Yue, Deliang Xiao, Xianhua Zhao