Patents by Inventor Cheng-Tsan TANG

Cheng-Tsan TANG 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).

  • Illuminant module
    Patent number: 10631383
    Abstract: An illuminant module includes a first illuminant unit, a second illuminant unit, a first phosphor layer, and a second phosphor layer. The first illuminant unit includes one or more first LED dice and a current regulator electrically connected to the LED dice in series. The second illuminant unit includes one or more second LED dice. The first phosphor layer at least covers the first LED dice, wherein first phosphor layer and the first LED dice collectively provide an emission having a first color temperature. The second phosphor layer at least covers the second LED dice, wherein second phosphor layer and the second LED dice collectively provide an emission having a second color temperature, the current regulator is configured to adjust currents flowing to the first illuminant unit and the second illuminant unit for changing luminous flux of emissions emitted from the first illuminant unit and the second illuminant unit.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: April 21, 2020
    Assignee: PROLIGHT OPTO TECHNOLOGY CORPORATION
    Inventors: Chen-Lun Hsing Chen, Jung-Hao Hung, Ya-Yu Hung, Cheng-Tsan Tang
  • ILLUMINANT MODULE
    Publication number: 20180116028
    Abstract: An illuminant module includes a first illuminant unit, a second illuminant unit, a first phosphor layer, and a second phosphor layer. The first illuminant unit includes one or more first LED dice and a current regulator electrically connected to the LED dice in series. The second illuminant unit includes one or more second LED dice. The first phosphor layer at least covers the first LED dice, wherein first phosphor layer and the first LED dice collectively provide an emission having a first color temperature. The second phosphor layer at least covers the second LED dice, wherein second phosphor layer and the second LED dice collectively provide an emission having a second color temperature, the current regulator is configured to adjust currents flowing to the first illuminant unit and the second illuminant unit for changing luminous flux of emissions emitted from the first illuminant unit and the second illuminant unit.
    Type: Application
    Filed: June 7, 2017
    Publication date: April 26, 2018
    Inventors: Chen-Lun HSING CHEN, Jung-Hao HUNG, Ya-Yu HUNG, Cheng-Tsan TANG