Patents by Inventor YUEH-HUNG CHENG

YUEH-HUNG CHENG 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).

  • Total luminous flux measurement system and total luminous flux measuring method
    Patent number: 8773655
    Abstract: The present invention relates to a total luminous flux measurement system and a method thereof for measuring a total luminous flux of a light emitting component. The total luminous flux measurement system includes a light receiving module, a first light detector and a processing module. The light receiving module is disposed on a central normal of the light emitting component and divides a projection light field to a forward light field and a side light field. The light receiving module receives a beam in the forward light field to obtain a forward luminous flux. The first light detector is disposed on a side of the light receiving module to receive a beam in the side light field to obtain a first side luminous flux. The processing module electrically connects the light receiving module and the first light detector to calculate the total luminous flux at the light emitting component.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: July 8, 2014
    Assignee: Chroma Ate Inc.
    Inventors: Hsu-Ting Cheng, Yueh-Hung Cheng
  • TOTAL LUMINOUS FLUX MEASUREMENT SYSTEM AND TOTAL LUMINOUS FLUX MEASURING METHOD
    Publication number: 20130321794
    Abstract: The present invention relates to a total luminous flux measurement system and a method thereof for measuring a total luminous flux of a light emitting component. The total luminous flux measurement system includes a light receiving module, a first light detector and a processing module. The light receiving module is disposed on a central normal of the light emitting component and divides a projection light field to a forward light field and a side light field. The light receiving module receives a beam in the forward light field to obtain a forward luminous flux. The first light detector is disposed on a side of the light receiving module to receive a beam in the side light field to obtain a first side luminous flux. The processing module electrically connects the light receiving module and the first light detector to calculate the total luminous flux at the light emitting component.
    Type: Application
    Filed: September 13, 2012
    Publication date: December 5, 2013
    Applicant: CHROMA ATE INC.
    Inventors: HSU-TING CHENG, YUEH-HUNG CHENG