Patents by Inventor Che-Hao FAN

Che-Hao FAN 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).

  • Method of regulating light wavelength for projection device
    Patent number: 9291884
    Abstract: The disclosure provides a method for regulating a light wavelength of a projection device. The method comprises the following steps. A single-color light source is provided and emits a first chromatic light. A phosphor layer is formed on an optical path of the single-color light source, so that the first chromatic light transmits the phosphor layer. The phosphor layer transforms a part of the first chromatic light to a second chromatic light, and emits the residual first chromatic light. The residual first chromatic light is further mixed with the second chromatic light to generate a third chromatic light. The wavelength of the third chromatic light is regulated by adjusting the proportion of the luminous intensity of the residual first chromatic light and the second chromatic light.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: March 22, 2016
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Wei-Ting Chen, Che-Hao Fan, Ru-Shi Liu, Keh-Su Chang, Chi Chen, Yen-I Chou
  • METHOD OF REGULATING LIGHT WAVELENGTH FOR PROJECTION DEVICE
    Publication number: 20140333908
    Abstract: The disclosure provides a method for regulating a light wavelength of a projection device. The method comprises the following steps. A single-color light source is provided and emits a first chromatic light. A phosphor layer is formed on an optical path of the single-color light source, so that the first chromatic light transmits the phosphor layer. The phosphor layer transforms a part of the first chromatic light to a second chromatic light, and emits the residual first chromatic light. The residual first chromatic light is further mixed with the second chromatic light to generate a third chromatic light. The wavelength of the third chromatic light is regulated by adjusting the proportion of the luminous intensity of the residual first chromatic light and the second chromatic light.
    Type: Application
    Filed: September 30, 2013
    Publication date: November 13, 2014
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Wei-Ting CHEN, Che-Hao FAN, Ru-Shi LIU, Keh-Su CHANG, Chi CHEN, Yen-I CHOU