Patents by Inventor Zong-Huai Lee

Zong-Huai Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7817028
    Abstract: A system and method for driving LED vehicle lights is provided, for diving an LED taillight and brake light, an LED reversing light and an LED direction indicator. The system and method uses direction indicator controller to receive the direction indicator enabling signal generated by vehicle light power controller and generate an direction indicator control signal to an enabling switch controller to avoid the flasher frequency of the direction indicator from being affected by the lighted taillight and brake light and reversing light so as to provide the driving capability that can stabilize the flasher frequency of the direction indicator.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: October 19, 2010
    Assignee: Opto Tech Corp.
    Inventors: Ju-Yuan You, Chien-Feng Chang, Zong-Huai Lee, Chih-Hao Tseng
  • Publication number: 20100084978
    Abstract: A system and method for driving LED vehicle lights is provided, for diving an LED taillight and brake light, an LED reversing light and an LED direction indicator. The system and method uses direction indicator controller to receive the direction indicator enabling signal generated by vehicle light power controller and generate an direction indicator control signal to an enabling switch controller to avoid the flasher frequency of the direction indicator from being affected by the lighted taillight and brake light and reversing light so as to provide the driving capability that can stabilize the flasher frequency of the direction indicator.
    Type: Application
    Filed: October 3, 2008
    Publication date: April 8, 2010
    Inventors: Ju-Yuan You, Chien-Feng Chang, Zong-Huai Lee, Chih-Hao Tseng
  • Patent number: 7542861
    Abstract: A method and system for LED calibration is provided for a plurality of LED modules cascaded in a series. Each LED module includes a plurality of LEDs, a driver and a controller. The control signal from a calibration host is transmitted to all the modules to light all LEDs in the LED module. Through the controller of the LED module, the calibration data transmitted from the calibration host is stored in the memory inside the driver so that all the LEDs will emit light according to the calibration. The present invention improves the uniformity of the light emission and improves the module maintenance convenience.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: June 2, 2009
    Assignee: Opto Tech Corp.
    Inventors: Ju-Yuan You, Chien-Feng Chang, Wei-Chih Liao, Zong-Huai Lee
  • Patent number: 7303310
    Abstract: A structure for a high diffuse efficiency and water-proof lighting device is provided, including a light tube and a base holder. The light tube and the base holder are each an enclosed structure. The light tube includes a circuit substrate inside the enclosed structure. The circuit substrate includes a plurality of LEDs. The light tube and the base holder each include two holes close to both ends. When the light tube and the base holder are assembled, the holes match so that the wire connecting the circuit substrate can go through the holes to enter the base holder. A water-proof and highly pull-resistant glue is used to fill the overlapping of the holes. A resilient element is used to connect the neighboring circuit substrates, the resilient element can absorb the deformation caused by the temperature changes so that the light diffusion remains uniform. Therefore, the lighting device can perform well even when operating in an environment with drastic temperature changes.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: December 4, 2007
    Assignee: Opto Tech Corp.
    Inventors: Ju-Yuan You, Chien-Liang Yeh, Zong-Huai Lee, Chien-Feng Chang, Chan-Peng Lin
  • Publication number: 20070223218
    Abstract: A structure for a high diffuse efficiency and water-proof lighting device is provided, including a light tube and a base holder. The light tube and the base holder are each an enclosed structure. The light tube includes a circuit substrate inside the enclosed structure. The circuit substrate includes a plurality of LEDs. The light tube and the base holder each include two holes close to both ends. When the light tube and the base holder are assembled, the holes match so that the wire connecting the circuit substrate can go through the holes to enter the base holder. A water-proof and highly pull-resistant glue is used to fill the overlapping of the holes. A resilient element is used to connect the neighboring circuit substrates, the resilient element can absorb the deformation caused by the temperature changes so that the light diffusion remains uniform. Therefore, the lighting device can perform well even when operating in an environment with drastic temperature changes.
    Type: Application
    Filed: March 23, 2006
    Publication date: September 27, 2007
    Inventors: Ju-Yuan You, Chien-Liang Yeh, Zong-Huai Lee, Chien-Feng Chang, Chan-Peng Lin
  • Patent number: 7201494
    Abstract: A lighting system capable of adjusting color temperature is provided. The lighting system mainly comprises a light source module and a mixing assembly. The light source module produces red-color, blue-color, and green-color lights so as to control the color temperature of a white light resulted from mixing the color lights. The mixing assembly is located at a side of the light source module and comprises a first, a second, and a third mixing device sequentially arranged along the light transmission path. The function of the first and third mixing devices is for light mixing by causing the lights to undergo multiple internal reflections. The second mixing device directs the lights passing through the first mixing device in a reverse direction (180 degrees) and enters into the third mixing device.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: April 10, 2007
    Assignee: Opto Tech Corporation
    Inventors: Ju-Yuan You, Chien-Liang Yeh, Zong-Huai Lee, Han-Ping Shieh, Ko-Wei Chien, June-Jay Wang
  • Publication number: 20060139916
    Abstract: A lighting system capable of adjusting color temperature is provided. The lighting system mainly comprises a light source module and a mixing assembly. The light source module produces red-color, blue-color, and green-color lights so as to control the color temperature of a white light resulted from mixing the color lights. The mixing assembly is located at a side of the light source module and comprises a first, a second, and a third mixing device sequentially arranged along the light transmission path. The function of the first and third mixing devices is for light mixing by causing the lights to undergo multiple internal reflections. The second mixing device directs the lights passing through the first mixing device in a reverse direction (180 degrees) and enters into the third mixing device. The present invention utilizes the light source module to adjust the proportions of the three color lights and the mixing assembly to achieve a uniform mixing by multiple reflections.
    Type: Application
    Filed: December 27, 2004
    Publication date: June 29, 2006
    Inventors: Ju-Yuan You, Chien-Liang Yeh, Zong-Huai Lee, Han-Ping Shieh, Ko-Wei Chien, June-Jay Wang